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来源：百度知道 编辑：UC知道 时间：2024/05/12 07:53:35
DATA TRANSMISSION
To achieve industrial acceptance of the c-i-s supply concept as wide as possible, not only energy
transmission but also data transmission shall be possible by only one two-wire supply line.
Preliminary investigations of PTB showed that this is also possible with the c-i-s concept
(“Powerline Communication“).
As is generally known, each periodical interruption of a direct voltage effects - for systeminherent
reasons - the emission of higher-frequency interference levels. To make this simple and
uncomplicated, the data rate, however, shall be chosen in such a way that the highest frequency
required for data transmission is much lower than the repetition frequency of the c-i-s switching
mode. The basic oscillation and its harmonics of the c-i-s switching mode could be filtered out
by means of a simple low-pass filter. The passband of this filter should only comprise the
frequency ranges required for data transmission
To achieve industrial acceptance of the c-i-s supply concept as wide as possible, not only energy
transmission but also data transmission shall be possible by only one two-wire supply line.
Preliminary investigations of PTB showed that this is also possible with the c-i-s concept
(“Powerline Communication“).
As is generally known, each periodical interruption of a direct voltage effects - for systeminherent
reasons - the emission of higher-frequency interference levels. To make this simple and
uncomplicated, the data rate, however, shall be chosen in such a way that the highest frequency
required for data transmission is much lower than the repetition frequency of the c-i-s switching
mode. The basic oscillation and its harmonics of the c-i-s switching mode could be filtered out
by means of a simple low-pass filter. The passband of this filter should only comprise the
frequency ranges required for data transmission
数据传输实现工业验收C-135型我硫供给尽可能广泛, 不仅能传输,而且数据传输应尽可能只有一两线供电线路. 初步调查显示,客运,这也是可能的C -Ⅰ收盘概念( "电力线通信" ) . 如所周知, 每个期刊中断,直接影响电压为systeminherent原因排放的频率较高,干扰水平. 为了使这个简单纯朴的数据率,但 应选择以这样一种方式的频率最高,所需的数据传输,远低于 重复频率的C一硫开关. 基本振荡及其谐波C-135型我硫开关可以过滤掉的是一个简单的 低通滤波器. 通此过滤应该只包括频率范围所需的数据传输. 数据传输率提高到50千字节/秒,都被认为是现实的. 由于频谱分配的干扰功率引起的C-135型我硫开关更快的数据传输要求 增加带宽以上的重复频率的C一硫开关大概只可实现电路相当努力. 在任何情况下, 这是可能实现的数据率一个量级如常目前过程控制 系统的基础上的优化控制模型,根据IEC 60079-27的"简单"的方法,一阶低通滤波 如上所述.