Method for repositioning a numerically controlled device
First Claim
1. A method for repositioning a crane, moving material handling equipment, and other numerically controlled devices, in a system including a camera imaging device, a storage data system, and an operator display screen by using an image taken of an object in the field of vision of the operator of the numerically controlled device as an aid, the method including a step to teach the system first by defining a child image from the imaging device, by forming a set of coordinates pertaining to the properties or state data for the numerically controlled device, the set of coordinates including a fixing point of the child image, and recording the child image, together with the co-ordinates in the data system, and the system later repositioning by comparing a real-time image from the imaging device with the child image stored in the data system, in order to determine the real-time position of the imaging device relative to the stored child image, by displaying the taught child image and real-time image on the operator display screen, and by superimposing a substantially straight line on the operator display screen depicting a measured distance between the fixing point of the child image and a fixing point of the real-time image, whereby the line is adapted to show the direction in which the numerically controlled device is repositioned, characterized in that, in the repositioning step, the image stored in the teaching step is sought when the coordinates of the real-time imaging device first comes close to the co-ordinate point of the child image stored in the data system.
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Abstract
The invention relates to a method for repositioning a numerically controlled device by using an image taken of an object as an aid. According to the method, the system is taught in such a way that a child image is defined for the camera'"'"'s image, either its own set of co-ordinates is formed for the element or a set of coordinates is retrieved from elsewhere, and the image thus obtained, together with its co-ordinates, is stored in the data system, and, in the repositioning situation, the real-time image is compared with the child image stored in the data system, in order to determine the real-time position of the imaging device relative to the stored image. The set of co-ordinates used is a set of co-ordinates retrieved using satellite positioning, or the device'"'"'s own internal set of co-ordinates. In the repositioning situation, the image stored in the teaching situation is sought as the co-ordinate point of the image stored in the memory is approached.
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Citations
11 Claims
- 1. A method for repositioning a crane, moving material handling equipment, and other numerically controlled devices, in a system including a camera imaging device, a storage data system, and an operator display screen by using an image taken of an object in the field of vision of the operator of the numerically controlled device as an aid, the method including a step to teach the system first by defining a child image from the imaging device, by forming a set of coordinates pertaining to the properties or state data for the numerically controlled device, the set of coordinates including a fixing point of the child image, and recording the child image, together with the co-ordinates in the data system, and the system later repositioning by comparing a real-time image from the imaging device with the child image stored in the data system, in order to determine the real-time position of the imaging device relative to the stored child image, by displaying the taught child image and real-time image on the operator display screen, and by superimposing a substantially straight line on the operator display screen depicting a measured distance between the fixing point of the child image and a fixing point of the real-time image, whereby the line is adapted to show the direction in which the numerically controlled device is repositioned, characterized in that, in the repositioning step, the image stored in the teaching step is sought when the coordinates of the real-time imaging device first comes close to the co-ordinate point of the child image stored in the data system.
Specification