Circuit monitoring device
DCFirst Claim
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1. A device for monitoring the status of a circuit based on a measurable parameter of the circuit, the device comprising:
- measurement means to measure the parameter of the circuit;
comparison means to compare the measured parameter to a plurality of threshold values and to assign a status based on a result of the comparison; and
transmission means to communicate the status over a network and to limit the communicated status to only digital bits indicating the status and being sufficient to describe the status,wherein the status communication is transmitted over the network to an output means configured to present an indication of the assigned status.
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Abstract
The circuit monitoring device is disclosed. The device is for monitoring circuit resistance. At configurable thresholds digital flags are triggered, the device can be used as a Security/Building management system. The device uses open technology is fully scaleable and allows programmable logic controllers to be used as security management systems. Using a soft logic option a PC could take the place of the PLC.
19 Citations
20 Claims
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1. A device for monitoring the status of a circuit based on a measurable parameter of the circuit, the device comprising:
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measurement means to measure the parameter of the circuit; comparison means to compare the measured parameter to a plurality of threshold values and to assign a status based on a result of the comparison; and transmission means to communicate the status over a network and to limit the communicated status to only digital bits indicating the status and being sufficient to describe the status, wherein the status communication is transmitted over the network to an output means configured to present an indication of the assigned status. - View Dependent Claims (2, 3)
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4. An apparatus for monitoring a circuit comprising:
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a circuit monitor to measure a parameter of the circuit; a processor to convert the measured parameter to a status signal, wherein the processor converts the measured parameter to the status signal by comparing the measured parameter to one or more of a plurality of threshold values, and generating the status signal based on a result of the comparison; and a transmitter to transmit a status transmission including the status signal over a network, said transmitter limiting the status signal included in the transmission to only digital bits representative of the status signal, wherein the status is transmitted over the network to a display configured to receive the status signal and to present an indication of a status of the circuit based on the received status signal. - View Dependent Claims (5, 6)
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7. An apparatus for monitoring a circuit comprising:
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a circuit monitor to measure a parameter of the circuit; a processor to convert the measured parameter to a status signal; and a transmitter to transmit a status transmission including the status signal to a display, said transmitter limiting the transmitted status signal included in the status transmission to digital bits representative of the status signal and being sufficient to describe the status signal, wherein the display is configured to receive the status signal and to present an indication of a status of the circuit based on the received status signal. - View Dependent Claims (8)
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9. An apparatus for monitoring a circuit comprising:
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a circuit monitor to measure a parameter of the circuit; a processor to convert the measured parameter to a status signal; and a transmitter to transmit a status transmission including the status signal over a network, said transmitter limiting the status signal included in the transmission to only digital bits sufficient to describe the status, wherein the status transmission is transmitted over the network to a display configured to receive the status signal and to present an indication of a status of the circuit based on the received status signal. - View Dependent Claims (10, 11, 12)
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13. An apparatus for monitoring a circuit and for coupling to a central system comprising:
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a module to measure a parameter of the circuit, to compare the measured parameter to a plurality of threshold values and to assign a discrete status to the circuit based on the comparison; and a communications module to communicate a signal indicative of the assigned status to the central system via a network, said communications module limiting the communicated assigned status to only digital bits indicating the assigned status and being sufficient to describe the assigned status, wherein the status communication is transmitted over the network to a display to present an indication of a status of the circuit based on the signal indicative of the assigned status. - View Dependent Claims (14, 15, 16)
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17. An apparatus for monitoring a circuit and for coupling to a central system comprising:
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a circuit module to determine a status of the circuit according to a measured parameter of the circuit and a plurality of thresholds, wherein the plurality of thresholds define a plurality of status conditions of the circuit; a network communications module coupled to the circuit module to communicate a signal indicative of the assigned status to the central system via a network, said network communications module limiting the communicated assigned status to only digital bits indicating the assigned status and being sufficient to describe the assigned status, wherein the central system is configured to present an indication of the status of the circuit based on the received signal indicative of the assigned status. - View Dependent Claims (18)
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19. A method for monitoring a circuit comprising:
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measuring a parameter of the circuit; comparing the measured parameter to one or more of a plurality of threshold values, wherein the threshold values define discrete status conditions of the circuit; generating a status signal according to the comparison of the measured parameter to the one or more of the plurality of threshold values; transmitting a status communication including the status signal to a centralised monitoring system via a network, wherein the communicated status signal is limited to digital bits concerning the status signal and being sufficient to describe the status signal; and causing the centralised monitoring system to present an indication of a status of the circuit based on the received status signal.
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20. A method for monitoring a circuit comprising:
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measuring a parameter of the circuit; converting the measured parameter to a status signal; transmitting a status communication including the status signal to a centralized monitoring system via a network, wherein the status signal included in the status communication is limited to digital bits being sufficient to describe the status signal; and causing the centralised monitoring system to present an indication of a status of the circuit based on the received status signal, wherein said transmitting the status signal includes transmitting via a wireless link.
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Specification