Scheme introduction:
Locating the cause of unstable low temperature (- 30 ℃) imaging of the FPGA module of an underwater imaging device and modifying the program (the original logic acquisition channel has more than 300 channels, of which more than 100 channels have acquired data, and the low temperature acquisition data is incorrect; after modifying the logic, the fault channel is reduced by about 15%); The FPGA processing of an underwater imaging device is re implemented (FPGA logic is completely rewritten, only 4 channels of AD acquisition data are faulty, and 4 channels of AD are frozen due to continuous low temperature test): the upper computer software sends control commands according to the agreed datagram protocol (nearly 30 commands, including control and parameter real-time adjustment) through the gigabit network to achieve multi-channel AD acquisition (SPI), DA setting (SPI), and data preprocessing (DFT multiplication and accumulation); The calculation results and original data are transmitted through gigabit network (FPGA logic of UDP IP protocol), other board interface control, and LTC current, voltage and temperature monitoring (I2C).
Performance parameters:
Industry classification: security monitoring
Delivery form: software
Performance parameters: FPGA module low temperature support temperature: - 30 ℃, acquisition channel: 300+
Application scenario: military industry