FPGA-based self-adaptive optical closed-loop control system and control method thereof

Abstract

The invention discloses an FPGA-based adaptive optical closed-loop control system which comprises a high-speed image sensor chip, a driving circuit of the high-speed image sensor chip, eight paths ofparallel SLVS-EC data streams, an FPGA module, a deformable mirror, an upper computer, a power supply module, an IIC register configuration module, a VHDCI, a gigabit Ethernet port and a control system; the FPGA module comprises an RXSLVS-EC protocol analysis module, an image data analysis and processing module and a deformable mirror control matrix solving module. According to the system, an industrial camera, a deformable mirror driver and an image processor are integrated on one FPGA board, an image sensor directly obtains images through the FPGA module and calculates deformable mirror control signals, the stability of the system is improved, image frame loss is prevented, meanwhile, the system structure is simplified, and the system cost and power consumption are reduced.

Description

technical field [0001] The invention belongs to the technical field of imaging processing, and in particular relates to an FPGA-based adaptive optical closed-loop control system and a control method. Background technique [0002] At present, the adaptive optics closed-loop control system (AO) uses workstations or FPGAs to control industrial high-speed cameras, deformable mirrors and other equipment. Generally speaking, industrial high-speed cameras are either USB, 1394, GigE or CameraLink. Poorly designed drivers or industrial camera hardware will cause image frame loss; the reason for poorly designed industrial camera frame loss is actually the blockage of the data channel, which cannot be processed in time, so when a new image comes in, the previous one It may be forced to be discarded, or the new image is forced to be discarded, resulting in the instability of the adaptive optics closed-loop control system (AO); secondly, each component is independent of each other, and t...

AI Technical Summary

Problems solved by technology

Poorly designed drivers or industrial camera hardware will cause image frame loss; the reason for poorly designed industrial camera frame loss is actually the blockage of the data channel, which cannot be processed in time, so when a new image comes in, the previous one It may be forced to be discarded, or the new image is forced to be discarded, resulting in the instability of the adaptive optics closed-loop control system (AO); secondly, each component is independent of each other, and the assembled system is relatively large and expensive

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