A power and data communication system includes an inboard computer, an outboard computer, and first and second wires. The first and second wires connect a first isolation transformer of the inboard computer to a second isolation transformer of the outboard computer. The inboard computer drives a driven voltage through the first isolation transformer. The outboard computer is configured to receive the driven voltage through the second isolation transformer to power the outboard computer. The outboard computer includes a load that is selectively connected across the second isolation transformer to transmit data to the inboard computer. The inboard computer receives the data through the first isolation transformer.

A network unit may be operatively attached to power lines of an interconnected power system and/or a device such as a power module that may further include a communication interface. The network unit may be operable to superimpose a first signal representative of a sensed parameter of the power system onto the power lines, thereby to transmit the first signal to other power modules in the interconnected power system or to a power device in interconnected power system. The network unit may receive a second signal of the parameter superimposed onto the power lines from another network unit.

Aspects of the subject disclosure may include, for example, a system for receiving telemetry information from an apparatus that induces electromagnetic waves on a wire surface of a wire of a power grid for delivery of communication signals to a recipient communication device coupled to the power grid, and detecting a condition from the telemetry information that is adverse to a delivery of the communication signals to the recipient communication device. Other embodiments are disclosed.

An inspection apparatus for use in wellbores in the oil and gas industries relates in general to the field of transmission of data between downhole module in a wellbore and a controlling module at the surface. The invention provides a method and apparatus for determining analog filter parameters for an analog front end comprising a plurality of filter stages receiving signals from a telemetry module, by repeating the steps of; receiving a signal of a known frequency and processing said signal by determining the magnitude of the frequency of the received signal until a plurality of signals have been received and processed; calculating an optimum set of filter parameters in dependence upon the measured frequency magnitudes and a predefined set of filter stage frequency responses.

A power and data communication system includes an inboard computer, an outboard computer, and first and second wires. The first and second wires connect a first isolation transformer of the inboard computer to a second isolation transformer of the outboard computer. The inboard computer drives a driven voltage through the first isolation transformer. The outboard computer is configured to receive the driven voltage through the second isolation transformer to power the outboard computer. The outboard computer incudes a load that is selectively connected across the second isolation transformer to transmit data to the inboard computer. The inboard computer receives the data through the first isolation transformer.

Aspects of the subject disclosure may include, for example, a system for receiving telemetry information from an apparatus that induces electromagnetic waves on a wire surface of a wire of a power grid for delivery of communication signals to a recipient communication device coupled to the power grid, and detecting a condition from the telemetry information that is adverse to a delivery of the communication signals to the recipient communication device. Other embodiments are disclosed.

Systems and apparatuses include a generator set including an electric generator, a sensor structured to provide a diagnostic signal, a controller, a light source, and a computer readable storage medium. The controller is configured to receive the diagnostic signal, determine an information code based on the diagnostic signal, and convert the information code to a flash sequence. The light source is configured to receive and output the flash sequence. The computer readable storage medium has instructions stored thereon that, upon execution by a processing circuit of a mobile device including an image capturing device and a display, cause the processing circuit to capture the flash sequence with the image capturing device, translate the flash sequence into information relating to the generator set, and provide the information on the display.

Provided are a communication system and a harness configured to detect a connection of an unauthorized apparatus to a communication line. In a communication system in which a plurality of communication apparatuses perform communication via communication lines, a communication line includes conductive wires for transferring signals and a cover portion that covers the conductive wires. The communication system includes a detection unit for detecting whether or not the cover portion has been removed. If removal of the cover portion of the communication line is detected by the detection unit, it can be determined that an unauthorized apparatus is connected to the communication line.

The present disclosure concerns a system for driving a Venetian blind comprising a blind assembly which comprises a Venetian blind, an electric motor for actuating the movement of said Venetian blind and first electronic means configured to generate a drive signal for driving said electric motor; a control unit having drive means for driving the movement of said Venetian blind, a power source for generating a current signal to power said electric motor and second electronic means that are in signal communication with said drive means and with said power source for controlling said electric motor; a two-wire power line disposed between said control unit and said blind assembly to power said electric motor with said current signal and the first electronic means are in signal communication with said second electronic means via said two-wire power line. The system is characterized in that the first electronic means are configured to generate a first data signal identifying the state of said electric motor and to detect a current signal in said two-wire power line identifying the current value absorbed by said electric motor; said second electronic means are configured to receive said first data signal and to detect said current signal, said second electronic means are configured to condition said first data signal and said current signal to thereby generate a second data signal; said first electronic means are configured to receive said second data signal and to condition said second data signal and said current signal, said drive signal being generated as a function of said second data signal.

Provided is a sensor network system including sensor master devices (15A to 15D) which receive detection information obtained by sensors (11A to 11F) through wireless communication, a data server (17) which acquires the detection information from the sensor master devices (15A to 15D) through power line communication, and notification devices (13A, 13B) which receive notification information from the data server (17) to perform notification, in which the sensor master devices (15A to 15D) are connected to the sensors (11A to 11F) and the notification devices (13A, 13B), and the data server (17) determines an object to be notified in accordance with, for example, a detection position which is detection information for at least one of an object to be notified and notification contents, on the basis of the acquired detection information.