A data acquisition system based on an embedded CPU board and Linux/OS has been developed for monitoring continuous measurement systems installed at remote observation sites through a network. This system has several types of Input/Output devices, such as AD converter, parallel and serial IOs. Ethernet ports are also provided so that most network software can be used on the system. It was confirmed that all devices responded within 1 ms after being triggered by user software and the system had been stable for a long time under normal load. This performance is adequate for the purpose of monitoring a measurement system's status.
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|Published - 2005 Jul