Dynamic high-precision positioning system and method

Abstract

The invention discloses a dynamic high-precision positioning system and a method. The system comprises an FPGA (Field-Programmable Gate Array) chip, a PC (Personal Computer) host computer, an origin sensor sensing component, and a servo encoder. The PC host computer communicates with the FPGA chip; the servo encoder data signal is connected to a high speed port of the FPGA chip; and the origin sensor sensing component is connected to an I / O port on a periphery of the FPGA chip. The method comprises the following steps of: communicating central data of the set station of the PC host computer with the FPGA chip through an Ethernet protocol; connecting the servo encoder data of the servo driver to the high speed port of the FPGA chip; connecting the origin sensor component to the I / O port onthe periphery of the FPGA chip, labeling the passing products, and recording the current position pulse data of each product in real time; and comparing the current location data of each product withworkstation data through the FPGA chip. According to the dynamic high-precision positioning system and the method, the consistency of each workstation positioning and the optical condition of the product to be inspected is achieved in the high speed visual inspection, and the repeatability is improved.

Description

technical field [0001] The invention relates to the technical field of positioning, in particular to a dynamic high-precision positioning system and method. Background technique [0002] The visual inspection system uses industrial cameras instead of human eyes to complete functions such as recognition, measurement, and positioning. Generally, a visual inspection system is composed of a camera, lens, and light source, which can replace manual completion of barcode characters, cracks, packaging, and whether the surface layer is complete. For the detection of dents, using a visual inspection system can effectively improve the detection speed and accuracy of the production line, greatly improve the output and quality, reduce labor costs, and prevent misjudgments caused by human eye fatigue. How to accurately position and capture the image of the detected object is a problem worth studying when the detected object passes through the set center point of the station under dynamic ...

AI Technical Summary

Problems solved by technology

[0002] The visual inspection system uses industrial cameras instead of human eyes to complete functions such as recognition, measurement, and positioning. Generally, a visual inspection system is composed of a camera, lens, and light source, which can replace manual completion of barcode characters, cracks, packaging, and whether the surface layer is complete. For the detection of dents, using a visual inspection system can effectively improve the detection speed and accuracy of the production line, greatly improve the output and quality, reduce labor costs, and prevent misjudgments caused by human eye fatigue. How to accurately position and capture the image of the detected object is a problem worthy of research

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