the light can be counted with a pulse counter 用幅度甄別器去掉大部分噪聲,用脈沖計(jì)數(shù)器計(jì)數(shù)。
rtu has many functions . it not only organize and send telesignal data, telemetering data, pulse counter data and frequency data etc to the main station but also receive the command of main station to implement telecontrol and teleadjusting according to the protocol . it makes the system run safe rtu的功能是按規(guī)約組織和發(fā)送遙信量、遙測(cè)量、電度量及頻率等數(shù)據(jù)到調(diào)度端,并接收調(diào)度端命令來(lái)實(shí)現(xiàn)遙控和遙調(diào),使系統(tǒng)安全的運(yùn)行。