| 摘要 |
PURPOSE:To attain a data collecting method which can ensure a high speed process to a terminal and can decrease the number of data connection circuits by collecting with preference the data on the building group terminal equipments that produced the data exceeding the set value. CONSTITUTION:A building group control system collects and processes with polling the measured values collected by the building group terminal equipments 1 - n connected to a building group center device 10 via an exchange circuit of a switchboard and the data on these measured values. The device 10 is connected to the switchboard via a preference reservation accepting circuit, and each of equipments 1 - n contains a preference reservation transmission means 20 which calls the device 10 via the preference reservation accepting circuit when the collected measured values change higher than the set value and transmits a code showing each own terminal name. Furthermore a preference reservation data collection means 30 is added to the device 10 to collect referentially the data on the terminal when the code showing the terminal name is received from the preference reservation accepting circuit. In such a constitution, the problem data can be quickly processed and the number of data collecting circuits can be extremely decreased. |
