Online coding synchronization control system used for coding imaging and control method

Abstract

The invention discloses an online coding synchronization control system used for coding imaging and a method. The synchronization control system is formed by an upper computer, a microcontroller and a field programmable gate array. In the synchronization control system, through serial port communication, the upper computer sends a sequential control parameter to the microcontroller. The microcontroller decodes and transcodes the acquired sequential parameter. Then the microcontroller controls the field programmable gate array FPGA to realize multipath coded TTL signal output according to the sequential parameter acquired through decoding. Finally, the multipath coded TTL signal is used to trigger a corresponding synchronization work device so as to complete synchronization control respectively. A pulse width of the multipath coded TTL signal and a relative time delay between different signals can carry out on-line coding. Characteristics of on-line real-time configuration, good expansibility and the like are possessed. The system and the method can be applied to the synchronization control fields of gated imaging, fluorescence lifetime imaging and the like.

Description

technical field [0001] The invention relates to the field of coded imaging synchronous control, in particular to an online coded synchronous control system and control method for coded imaging. Background technique [0002] Online codable synchronous control technology can provide synchronous control technology for codable imaging technology fields such as laser range-gated imaging and fluorescence lifetime imaging. On-line Codable Synchronous Control Through online generation of multiple on-line codable TTL signals to trigger synchronous working devices to complete the synchronous control technology, the relative delay and pulse width between multiple TTL signals can be freely encoded on-line. The online synchronous control technology allows users to configure online and real-time when performing coded imaging, which increases the user's operability. Codable performance expands the depth of field of a single imaged frame. Therefore, on-line codable synchronous control mak...

AI Technical Summary

Problems solved by technology

At present, the clock control accuracy of the timing control system based on FPGA is on the order of nanoseconds. Most of the domestic and foreign patents focus on synchronously controlling the pulse width accuracy and delay accuracy of TTL signals. For example, patents CN103368543A and CN201410837006.4 use FPGA as a synchronization Under the premise of controlling the chip, the generation of synchronous TTL signal with ps-level pulse width and ns-level delay is realized, and there is no synchronous control method for codable imaging technology.

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