The design methods of the fire alarm system based on can bus , including the hardware methods of filter circuit and photoelectric isolation and software methods of digital filter and software trap , are brought foward to enhance the system reliability 提出了基于can總線的船舶火災報警系統(tǒng)的設計方法,即通過數(shù)字濾波和軟件陷阱等措施來提高系統(tǒng)的可靠性。
Meanwile , software methods - software traps , software watchdogs , digital filter intensify the anti - interference . v / f switch smooths change of signals , which avoids data fluctuation and benefits anti - interference , the visual basic is selected as developed platform 此外,文中對智能儀表與pc機的通信作了詳細的設計,其中包括主機與d碩士學住論文waiaster ’ stiiesis各節(jié)點的通信規(guī)約,詳細的軟件設計框圖。
In addition , this paper not only makes detailed illustration on hardware but also on software design in respect of field anti - jamming performance . especially in software design , it adopts methods of " software trap " and " sign position setting " greatly improving the antijamming capacity of accumulator 另外,本文在現(xiàn)場抗干擾方面,不僅在硬件設計上作出了明確的闡述,而且在軟件設計上,采用了“軟件陷阱法”和“標志位設置法” ,使得積算儀的抗干擾性能,得到大大的提高。