TRANSMISSION SYSTEM FOR MEASUREMENT DATA ON FACILITY BY MODEM CHIP

摘要

PURPOSE: Provided is a transmission system for measurement data on a facility by a modem chip which includes unified a small-sized transmission device like a one chip processor, a one chip modem or so on so that it raises convenience in installing and measuring. CONSTITUTION: The transmission system for measurement data on the facility by the modem chip comprises the parts of: an input terminal(32) which consists of gauges, measurement sensors and a transducer; a multiplexer(12) which divides input signals by time to select by sequence; an amplifying circuit and a filter(14) which normalize the selected signal to a certain size; an analog-digital converter(15); a one chip processor(16) in the transmission side which receives a digitally-changed signal to calculate data; a one chip modem(10) in the transmission side which receives calculated data and changes into frequency; a wired transmission line(22) which is connected to the one chip modem by a serial port(20) to transmit frequency-changed data; a one chip modem(11) in the reception side which is connected to the wire transmission line in the reception side to change frequency into a digital signal; a one chip processor(17) in the reception side which receives a digitally-changed signal to calculate data; a digital-analog converter(24); and an output terminal(30) which generates an analog signal.