To provide a remote monitoring system capable of sending an instruction to a co-drying preparation facility even when a monitoring management computer is system down. The remote monitoring system 1 is provided with a plurality of monitoring means 400 a, 400 b via a network 50 so that machine facilities provided in the facility 100 can be monitored from a plurality of locations. The plurality of monitoring means 400 a, 400 b are classified into a monitoring subject and a monitoring object, and are set to differ access rights. Further, the system is provided with an authority changing means 300 for transferring the authority of the monitoring subject 400 a to the monitoring object 400 b and allowing the monitoring object 400 b to monitor using the authority. Figure 1

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