摘要:
A method and system are provided for determining a length quantity of a power transmission line, which connects a first location with a second location. A first signal having a first carrier frequency is provided at the first location. The first signal is transmitted from the first location to the second location via the power transmission line. A second signal having a second frequency is provided at the second location. A first phase difference between the first signal and the second signal is measured at the second location, and the length quantity is calculated from the measured phase difference. In the system, a second receiver at the second location is configured to receive the first signal having the first carrier frequency from the first location. A frequency generator creates the second signal having the second frequency at the second location. The receiver includes a phase detection device configured to detect a first phase difference between the second frequency and the first carrier frequency at the second location.
摘要:
An electronic apparatus includes a display panel (12) connected to a body (10) and able to occupy a first and second position with respect to the body (10), and an input panel (14) connected to the body (10) and able to occupy a first and second position with respect to the body (10). When the display panel (12) and the input panel (14) both occupy their respective first position, the input panel (14) hides part of the display panel (12). When the display panel (12) occupies its first position and the input panel (14) occupies its second position, the display panel (12) hides at least part of the input panel (14). When the display panel (12) occupies its second position, the input panel (14) is movable from its first position to its second position and/or movable from its second position to its first position.
摘要:
A user interface for a portable apparatus is disclosed. The user interface comprises a sensor arranged to determine a spatial change, wherein said user interface being arranged to control at least one function, wherein the function is controlled by said determined spatial change; an actuator arrangement; and at least one mass, wherein the actuator arrangement is arranged to controllably actuate at least one of the at least one mass by acceleration to by inertia of the actuated mass provide a force on the portable apparatus. Further, an apparatus, a method, and a computer program for controlling a function are disclosed.
摘要:
A system and method of controlling an electricity generating system that includes at least one intermittent energy source generating plant are disclosed. An exemplary method includes calculating actual operating parameters of the at least one intermittent energy source generating plant; calculating forecast operating parameters of the at least one intermittent energy source generating plant; generating intermittent energy source contingency definitions from such actual operating parameters and forecast operating parameters; analysing the intermittent energy source contingency definitions to provide contingency analyses; and controlling the electricity generating system in dependence upon such contingency analyses.
摘要:
A method and system are disclosed for controlling a distribution of electrical power in a power distribution network having a first power distribution region and a second power distribution region. The first power distribution region can include first primary devices that interact with first process devices, and the second power distribution region can include second primary devices that interact with second process devices a distribution controller including a standardized description of the first region. A first distribution controller can be connected to the first process devices, can control a distribution of electrical power in the first power distribution region, and can identify, following a network reconfiguration, an orphan network section that is disconnected from the first region and connected to the second region. The first distribution controller can transmit a standardized description of the identified orphan network section to a second distribution controller connected to the second process devices.