| 摘要 |
PROBLEM TO BE SOLVED: To obtain a remote supervisory system where telephone lines installed up to a machine room of each building are not required so as to reduce the installation work cost for installing telephone lines and the running cost such as the line utility charge and supervisory information from each building is collectively reported to a remote supervisory center so as to suppress the number of telephone lines of the remote supervisory center. SOLUTION: Remote supervisory units 1 provided in each building to supervise building facility are divided into blocks for each prescribed area, each block is provided with a base station remote supervisory unit 2, which wirelessly receives supervisory information of the building facility from the remote supervisory units 1 in the blocks, collects the information and informs the remote supervisory center 3 about the collected information through a telephone line 4.
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