Liquefied petroleum gas(LPG)pipelines were embedded deeply underground. It was difficult to test, take sample and monitor operation conditions.

"With the information, the workers in the center can control the stations' lighting and temperature, monitor trains' operation and deal with emergencies," said Zhu Dianping, from CR Beiing.

Although it is unlikely to make a significant difference in this application, in others, such additional steps could have added significant time to the operation that you really want to monitor.