The invention concerns a control and monitoring device for a switch machine of a railway switch comprising: a power supply for providing a switch motor of the switch machine with a current, the switch motor being adapted to move points of the railway switch, a relay having a primary contact connected electrically to the power supply via at least one line and a secondary contact adapted to be electrically connected to the switch motor; the relay being adapted to switch on and off the power provided to the switch motor; at least one current sensor adapted to sense the current to be provided to the switch motor at the at least one line between the power supply and the relay; at least one voltage sensor adapted to sense a voltage to be provided to the switch motor at the at least one line between the power supply and the relay; a monitoring module connected to the at least one current sensor and the at least one voltage sensor, wherein the monitoring module is adapted to record the measured current and voltage values.

The invention concerns a control and monitoring device for a switch machine of a railway switch comprising: a power supply for providing a switch motor of the switch machine with a current, the switch motor being adapted to move points of the railway switch, a relay having a primary contact connected electrically to the power supply via at least one line and a secondary contact adapted to be electrically connected to the switch motor; the relay being adapted to switch on and off the power provided to the switch motor; at least one current sensor adapted to sense the current to be provided to the switch motor at the at least one line between the power supply and the relay; at least one voltage sensor adapted to sense a voltage to be provided to the switch motor at the at least one line between the power supply and the relay; a monitoring module connected to the at least one current sensor and the at least one voltage sensor, wherein the monitoring module is adapted to record the measured current and voltage values.

Sections of a linear motor track can each include a single power sensor configured to detect a power current in an erroneous state and one or more reference sensors configured to detect reference currents in erroneous states. The power sensor can be arranged between multiple drive coils of a section and a DC power rail (or mid-bus) for the drive coils. The power sensor can produce a single isolated output to a processor for the section, and the processor, in turn, can compare the output to a threshold for determining an error. The one or more reference sensors can be arranged between lower switches and a DC-reference bus, thereby providing a DC-referenced sensing signal for the drive coil currents. By referencing the processor to the same rail as the DC-referenced current sensing circuit, the reference sensors can produce outputs to the processor without any need for isolation.

Sections of a linear motor track can each include a single power sensor configured to detect a power current in an erroneous state and one or more reference sensors configured to detect reference currents in erroneous states. The power sensor can be arranged between multiple drive coils of a section and a DC power rail (or mid-bus) for the drive coils. The power sensor can produce a single isolated output to a processor for the section, and the processor, in turn, can compare the output to a threshold for determining an error. The one or more reference sensors can be arranged between lower switches and a DC-reference bus, thereby providing a DC-referenced sensing signal for the drive coil currents. By referencing the processor to the same rail as the DC-referenced current sensing circuit, the reference sensors can produce outputs to the processor without any need for isolation.

An electric current measurement apparatus for measuring an electric current flowing in a conducting wire in a circuit to be measured, the electric current measurement apparatus characterized by having a magnetic element to which a drive electric current terminal and a measurement voltage terminal are provided, a holder for fixing a positional relationship of the conducting wire to a magnetic body, an electric current source capable of outputting at least one frequency of alternating electric current across the drive electric current terminal, a voltage meter for measuring a voltage across the measurement voltage terminal, and a low-pass filter provided between the measurement voltage terminal and the voltage meter.

A system provides indirect current measurement using dynamic sensing of rapidly changing electromagnetic fields. This measurement is achieved using non-contact sensors that are positioned over electric circuit breaker bodies. The system enables the use of readily available, low-cost, mass-produced digital electromagnetic sensors to measure current for circuits in a building. The system may estimate peak electromagnetic field strength from unsynchronized sensor samples. The system may compensate for the low sample rate of the sensors. The system may compensate for smoothing that is performed by sensors so as to be usable as a sensor for a dynamic electromagnetic applications. The system may account for the presence of measurement leakage that causes electromagnetic field distortion. Moreover, the system may infer the electric equipment in use, its time of operation and activity state based on estimates of the alternating electromagnetic field and the use of machine learning or machine intelligence algorithms.

A system provides indirect current measurement using dynamic sensing of rapidly changing electromagnetic fields. This measurement is achieved using non-contact sensors that are positioned over electric circuit breaker bodies. The system enables the use of readily available, low-cost, mass-produced digital electromagnetic sensors to measure current for circuits in a building. The system may estimate peak electromagnetic field strength from unsynchronized sensor samples. The system may compensate for the low sample rate of the sensors. The system may compensate for smoothing that is performed by sensors so as to be usable as a sensor for a dynamic electromagnetic applications. The system may account for the presence of measurement leakage that causes electromagnetic field distortion. Moreover, the system may infer the electric equipment in use, its time of operation and activity state based on estimates of the alternating electromagnetic field and the use of machine learning or machine intelligence algorithms.

Systems, devices, and methods for an monitoring power consumption of a known electronic device including: monitoring, by a monitoring device, a received input electrical power from the known electronic devices; determining a maximum measured power value of the monitored input electrical power; converting the determined maximum power value to a current value; determining if the converted current value is greater than the determined maximum measured power value; connecting to a remote computing device and obtaining access to communicate with the remote computing device via an authentication process; and transmitting data to the connected remote computing device if the determined converted current value is greater than zero.

Systems, devices, and methods for an monitoring power consumption of a known electronic device including: monitoring, by a monitoring device, a received input electrical power from the known electronic devices; determining a maximum measured power value of the monitored input electrical power; converting the determined maximum power value to a current value; determining if the converted current value is greater than the determined maximum measured power value; connecting to a remote computing device and obtaining access to communicate with the remote computing device via an authentication process; and transmitting data to the connected remote computing device if the determined converted current value is greater than zero.

Rotational angle sensor systems and methods are provided for detecting an angular position of a movable structure. The movable structure may be configured to rotate about an axis of rotation between a first rotational position and a second rotational position. A magnet may have a magnetic field pattern with a magnetic field orientation and an angle sensor may be configured to detect the magnetic field pattern and generate one or more signals, based on the magnetic field orientation, corresponding to a rotational position of the movable structure. Additionally, a first one of the magnet and the angle sensor is configured to rotate about the axis of rotation relative to a second one of the magnet and the angle sensor that is rotationally fixed such that the magnetic field orientation changes relative to the angle sensor as the movable structure rotates about the axis of rotation.