Patent application number | Description | Published |
20080204042 | NETWORKED POWER LINE PARAMETER ANALYSIS METHOD AND SYSTEM - A method and apparatus is disclosed for determining power line parameter of a system. Specifically, there is provided a system for determining comprising a networked device including a voltage perturbation circuit coupled to a voltage source and configured to perturb the waveform of the voltage source, and a voltage measurement circuit coupled to the voltage source and configured to transmit voltage measurements of the waveform over a network and a remote monitoring unit, coupled to the network, and configured to receive the voltage measurements over the network and to calculate an incident energy using the voltage measurements. | 08-28-2008 |
20080265910 | Line impedance measurement method and system - A technique is disclosed for determining capacitive, inductive, and resistive components of power line impedance. A measurement circuit switches a burden resistor between power line conductors to cause a droop in a voltage waveform. The voltage waveform is sampled prior to inclusion of the resistor in the circuit, as well as after to identify the droop. The short circuit between the power lines is then removed by opening the circuit and a first effective capacitance in the test circuitry causes a resonant ring due to the inductive component of the power line impedance. The process is repeated a second time with a second effective load capacitance enabled in the test circuitry to cause a second resonant ring. Based upon the frequency of the rings and the voltage measurements, the capacitive, inductive, and resistive components of power line impedance can be computed. | 10-30-2008 |
20080265912 | Portable line impedance measurement method and system - A technique is disclosed for determining capacitive, inductive, and resistive components of power line impedance via a portable line impedance measurement system. The measurement system includes a circuit that switches a burden resistor between power line conductors to cause a droop in a voltage waveform. The voltage waveform is sampled prior to inclusion of the resistor in the circuit, as well as after to identify the droop. The short circuit between the power lines is then removed by opening the circuit and a first effective capacitance in the test circuitry causes a resonant ring due to the inductive component of the power line impedance. The process is repeated a second time with a second effective load capacitance enabled in the test circuitry to cause a second resonant ring. Based upon the frequency of the rings and the voltage measurements, the individual impedance components of power line impedance can be computed. | 10-30-2008 |
20100097186 | USER INTERFACE DEVICES FOR CONTROL OF MACHINE SYSTEMS - What is disclosed is a system for controlling a process, where the process is implemented by a machine system. The system includes a user interface device and a first transceiver coupled to the user interface device. The first transceiver is configured to receive communications from the user interface device and transfer the communications. The system also includes a second transceiver in communication with the first transceiver and configured to transfer power to the first transceiver, receive the communications from the first transceiver, and transfer the communications to control the process implemented by the machine system. | 04-22-2010 |
20100304683 | WIRELESS USER INTERFACE SYSTEM PERFORMANCE MONITORING - What is disclosed is a user interface system for controlling a process, where the process is implemented in a machine system. The user interface system includes a user interface configured to receive user input to control the process of the machine system. The user interface system also includes a first transceiver coupled to the user interface and configured to provide user power to the user interface, where the first transceiver is configured to wirelessly receive input power from a second transceiver. The user interface system also includes a processing system configured to monitor a performance factor of the first transceiver, process the performance factor to determine when a power transfer problem exists between the second transceiver and the first transceiver, and transfer an alert in response to the power transfer problem. | 12-02-2010 |
20130338798 | WIRELESS USER INTERFACE SYSTEM PERFORMANCE MONITORING - What is disclosed is a wireless push button device. The wireless push button device includes a user interface configured to receive user input to control a process of a machine system. The wireless push button device also includes a first transceiver coupled to the user interface and configured to wirelessly receive input power from a second transceiver, provide user power to the user interface, and wirelessly transfer communications related to the user input to the second transceiver. The wireless push button device also includes a processing system configured to determine when a power transfer problem exists between the second transceiver and the first transceiver, and transfer an alert in response to the power transfer problem. | 12-19-2013 |
20140021896 | Apparatus and Method for Disabling the Operation of High Power Devices - A drive circuit for delivering high-level power to a load, and method of stopping a high power load from operating, are disclosed. The drive circuit includes a high power circuit capable of being coupled to the load and delivering the high level power thereto, and a to power circuit that controls the high power circuit. The low power circuit includes a first circuit portion that provides at least one control signal that is at least indirectly communicated to the high power circuit and that controls the delivering of the high level power by the high power circuit, and a second circuit portions coupled to the first circuit portion. The second circuit portion is capable of disabling the first circuit portion so that the at least one control signal avoids taking on values that would result in the high power circuit delivering the high level power to the load. | 01-23-2014 |