A modular structure supports elevated rail segments for delivering electrical power to a moving work machine, such as a hauler at a mining site. Opposite ends of a roadside barrier contain complementary tubular couplers arranged vertically. A lower end of a dielectric post positioned in one of the tubular couplers has opposing dielectric plates at an upper end. A top edge of each plate has a creepage concavity between a pair of rail recesses. Another dielectric post of similar configuration is positioned in the other of the tubular couplers. Holes within the couplers and the posts ensure alignment of respective rail recesses in which conductive rails are placed. Dielectric inserts frictionally lock the rails into the rail recesses.

A modular structure supports elevated rail segments for delivering electrical power to a moving work machine, such as a hauler at a mining site. Opposite ends of a roadside barrier contain complementary tubular couplers arranged vertically. A lower end of a dielectric post positioned in one of the tubular couplers has opposing dielectric plates at an upper end. A top edge of each plate has a creepage concavity between a pair of rail recesses. Another dielectric post of similar configuration is positioned in the other of the tubular couplers. Holes within the couplers and the posts ensure alignment of respective rail recesses in which conductive rails are placed. Dielectric inserts frictionally lock the rails into the rail recesses.

A modular structure supports elevated rail segments for delivering electrical power to a moving work machine, such as a hauler at a mining site. Opposite ends of a roadside barrier contain complementary tubular couplers arranged vertically. A lower end of a dielectric post positioned in one of the tubular couplers has opposing dielectric plates at an upper end. A top edge of each plate has a creepage concavity between a pair of rail recesses. Another dielectric post of similar configuration is positioned in the other of the tubular couplers. Holes within the couplers and the posts ensure alignment of respective rail recesses in which conductive rails are placed. Dielectric inserts frictionally lock the rails into the rail recesses.

A wireless power transmitting device transmits power by wireless to a wireless power receiving device through magnetic coupling between a feeding coil and a receiving coil and includes: a feeding circuit including a power conversion circuit that converts DC power into AC power of a drive frequency and a feeding coil unit including the feeding coil that receives the AC power supplied from the power conversion circuit to generate an AC magnetic field; and a control circuit Stu that controls the amount of magnetic flux generated from the feeding coil. The control circuit Stu calculates a separation distance between the feeding and receiving coils in their opposing direction from the circuit characteristic value of the wireless power transmitting device in a state where the amount of magnetic flux generated from the feeding coil is controlled so as to be constant.

Devices for extracting cleaning robots from swimming pools include support frames and plates which can be deployed beyond and below the support frames. The support frames may be supported on rims of the swimming pools.

Devices for extracting cleaning robots from swimming pools include support frames and plates which can be deployed beyond and below the support frames. The support frames may be supported on rims of the swimming pools.

A method is provided for controlling a vehicle safety system in a vehicle provided with a current collector arranged to transmit electric power from a current conductor in the surface of a road. The current collector is controllable for vertical and transverse displacement relative to a longitudinal axis of the vehicle to contact and track the current conductor. The method involves performing the steps of detecting that an obstacle is located in the path of the current collector; transmitting data from the forward looking data collecting system to the electronic control unit; performing an object classification to determine a damage level for the dynamic charging system; determining an action to be taken by the safety system based on the determined damage level; and initiating the action in dependence of at least the determined damage level.

A rail vehicle includes a car body having both a passenger space and a stowage space that is provided with a controller and at least one station for accommodating light electric vehicles. The stations have a chassis, a holding structure, a locking mechanism, and a power outlet. The holding structure can hold the light electric vehicle stationary. The locking mechanism can retain the light electric vehicle in the holding structure. The power outlet can deliver electrical power to a battery of the light electric vehicle when the light electric vehicle is secured in the holding structure and connected to the power outlet. The power outlet can be connected to an electrical power network of the rail vehicle. The controller can selectively send a release signal to the locking mechanism, so as to release the locking mechanism, and to selectively operate the power outlet so as to deliver the electrical power.

A ground-side power feeding device includes a ground-side power feeding coil that wirelessly transmits or receives power to or from a vehicle-side power feeding coil mounted in the vehicle via a magnetic field having a first frequency, a light emitting unit that is disposed at any position at least around the ground-side power feeding coil and in an upper portion of the ground-side power feeding coil when the ground-side power feeding coil is seen from above, and a light emitting power transmitting coil that wirelessly transmits power to the light emitting unit. The light emitting unit has a light emitting power receiving coil which wirelessly receives power from the light emitting power transmitting coil via a magnetic field having a second frequency different from the first frequency, and a light emitting body which emits light with power received by the light emitting power receiving coil.

A ground-side power feeding device includes a ground-side power feeding coil that wirelessly transmits or receives power to or from a vehicle-side power feeding coil mounted in the vehicle via a magnetic field having a first frequency, a light emitting unit that is disposed at any position at least around the ground-side power feeding coil and in an upper portion of the ground-side power feeding coil when the ground-side power feeding coil is seen from above, and a light emitting power transmitting coil that wirelessly transmits power to the light emitting unit. The light emitting unit has a light emitting power receiving coil which wirelessly receives power from the light emitting power transmitting coil via a magnetic field having a second frequency different from the first frequency, and a light emitting body which emits light with power received by the light emitting power receiving coil.