Circuit monitoring device
DCFirst Claim
Patent Images
1. An apparatus for monitoring a circuit and for coupling to a central system comprising:
- a circuit module to determine a status 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 all status communications with the central system to only the signal indicative of the assigned status; and
a display to present an indication of a status of the circuit based on the signal indicative of the assigned status, wherein the circuit module measures a magnitude of a parameter of the circuit and generates a count value representative of said magnitude.
6 Assignments
Litigations
0 Petitions
Accused Products
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.
-
Citations
20 Claims
-
1. An apparatus for monitoring a circuit and for coupling to a central system comprising:
-
a circuit module to determine a status 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 all status communications with the central system to only the signal indicative of the assigned status; and a display to present an indication of a status of the circuit based on the signal indicative of the assigned status, wherein the circuit module measures a magnitude of a parameter of the circuit and generates a count value representative of said magnitude. - View Dependent Claims (2, 3, 4, 5, 6, 7, 15, 18)
-
-
8. A method for monitoring a circuit comprising:
-
measuring a parameter of the circuit; converting the measured parameter to a status signal; transmitting the status signal via a network; limiting all status communications over the network to only the status signal; and presenting an indication of a status of the circuit based on the received status signal, wherein said measuring comprises measuring a magnitude of said parameter and generating a count representative of said magnitude. - View Dependent Claims (10, 16, 19)
-
-
9. A method for monitoring a circuit comprising:
-
measuring a parameter of the circuit; converting the measured parameter to a status signal; transmitting the status signal via a network; limiting all status communications over the network to only the status signal; and presenting an indication of a status of the circuit based on the received status signal, wherein said converting comprises; passing said analog signal to an analog to digital converter; generating by the analog to digital converter a count value representative of a magnitude of said analog signal; comparing said count value with a threshold value; and assigning from the comparing said status signal. - View Dependent Claims (11, 12, 17, 20)
-
-
13. An apparatus for monitoring comprising:
-
one or more circuit monitoring devices to monitor a parameter of a circuit; a centralized controller to monitor the one or more circuit monitoring devices; a scanner module to communicate between the one or more circuit monitoring devices and the centralized controller; wherein each of the one or more circuit modules measures the end-of-line resistance of the circuit, compares the measured resistance to a number of threshold values and assigns a status based on the result of the comparison; and wherein each of the one or more circuit modules outputs the assigned status in a form of five digital bits which are then transmitted to the centralized controller, which does not need to concern itself with an actual value of an end-of-line resistance for a circuit but merely with a determined status of the circuit.
-
-
14. An apparatus for monitoring a circuit comprising:
-
a circuit monitor to measure a parameter of the circuit; a processor to convert the measured parameter to a status signal; a transmitter to transmit the status signal over a network, said transmitter limiting a status transmission to only the status signal by transmitting only those few bits necessary to describe the status signal; and a display to receive the status signal and to present an indication of a status of the circuit based on the received status signal, wherein the status transmission is limited to five bits or less.
-
Specification