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Background The large high-altitude air shower observatory (LHAASO) is being built near Daocheng (4410 m a.s.l.) in the Sichuan province of China. Its main instrument is the one-kilometer square extensive air shower array (KM2A) which will comprise nearly 7000 detectors. The system adopts a distributed architecture where each detector has local front-end electronics for signal digitization and transmission...
This paper introduces intelligent control of LED lighting by using the Doppler circuit to detect the moving people and vehicles. Visible light communication (VLC) is activated by the opening of LED. STM32 can process Doppler signals and judge the necessity of communication according to the time of day or night to guarantee the intelligent switch of LED and green communication. The paper describes...
At present, the technique of dual redundancy CAN-bus is mainly implemented by software, so that it has the disadvantages of low reliability and bad real-time performance. Built on the error handling rule in CAN specification version 2.0, a hardware redundancy management unit is creatively put forward in this paper. Based on FPGA, a kind of customized Dual Redundancy CAN-bus Controller (DRCC) is designed...
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