H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 5/14 (2006.01) G08B 26/00 (2006.01) H04Q 9/14 (2006.01)
Patent
CA 2049656
Disclosed is an anti-disaster system for receiving terminal data in response to the sequential calling of the terminals which is achieved by designating addresses from a receiver and for performing alarming or the like. Each of the terminals has an interrupt transmission section for transmitting a break signal which invalidates a terminal response signal on a timing when the terminal response signal to the receiver is transmitted when an abnormality is detected to notify generation of an interrupt. The receiver includes an interrupt detection section for detecting an interrupt of a terminal when it receives the break signal at a timing when the terminal response signal is received, and a calling control section for specifying the terminal in which abnormality data is detected, the specification being achieved by transmitting the calling signals for interrupt confirmation to the terminals when an interrupt detection output is obtained from said interrupt signal detection section to allow the terminal to transmit the terminal response signal containing an interrupt level signal which indicates the cause of generation of the interrupt and by performing sequential group calling of the terminals on the basis of the order of priority of the interrupt level signal. Consequently, when urgent data is detected at the terminal end, terminal data can be received quickly independently of the sequential calling and generation of an abnormality can be determined. Furthermore, since an interrupt confirmation request is made from the receiver to the terminal in response to the interrupt based on a break signal so as to allow the terminal to notify the cause of generation of the interrupt, an adequate processing, corresponding to the cause of generation of the interrupt, can be executed on the receiver end.
Hochiki Kabushiki Kaisha
Marks & Clerk
LandOfFree
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