Telemetry system
1 Assignment
0 Petitions
Accused Products
Abstract
In a remote monitoring system, a supervision terminal, 37, monitors the status of the communication link, 32, 34, 36, between the supervision terminal and each of a plurality of remote terminals, 33, connected to the supervision terminal via a data network, 35. The remote terminals may be used to emulate a line interface for monitor devices such as fire alarms, 31, while providing continual assurance of the integrity of the link between the supervision terminal and the alarm.
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Citations
108 Claims
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1-85. -85. (canceled)
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86. A telemetry system including:
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one or more supervision terminals;
one or more remote terminals associated with at least one of the supervision terminals;
a data network linking the supervision terminal and the remote terminal via an “
always-on”
connexion through the data network via a path between the supervision terminal and the or each remote terminal;
wherein;
the or each supervision terminal is in communication with each corresponding associated remote terminal across the data network using network facilities of the data network for carriage and switching or routing of messages;
wherein messages from the remote terminal to the supervision terminal are transmitted across the network, the message content being passed transparently across the network between the remote terminal to the supervision terminal;
wherein the supervision terminal monitors the integrity of the path between the supervision terminal and the or each remote terminal by transmitting poll requests to the or each remote terminal according to a fixed or programmable routine; and
wherein the supervision terminal monitors poll responses from the or each remote terminal to determine path integrity. - View Dependent Claims (87, 88, 89, 90, 91, 92, 93, 94, 100, 101, 102, 103, 104, 105, 106, 107, 108)
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95. A method of transmitting information in a telemetry system including:
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one or more supervision terminals;
one or more remote terminals associated with at least one of the supervision terminals;
a data network linking the supervision terminal and the remote terminal via an “
always-on”
connexion through the data network;
the method including the steps of;
monitoring the or each remote terminal from at least one of the associated supervision terminals via the data network using the network facilities for carriage and switching or routing of messages;
transmitting messages from the remote terminal to the supervision terminal across the network, the message content being passed transparently across the network between the remote terminal to the supervision terminal; and
monitoring the path integrity between the supervision terminal to the or each remote terminal by transmitting poll requests from the supervision terminal to the or each remote terminal and monitoring poll responses from the or each remote terminal according to a fixed or programmable routine; and
wherein the supervision terminal monitors poll responses from the or each remote terminal. - View Dependent Claims (96, 97, 98, 99)
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Specification