摘要:
Exemplary methods, systems and components are implemented on a multipassenger transit vehicle to provide passenger access to a pre-assigned interactive electronic media device associated with a passenger identification (ID) code or associated with an on-board situs location. The electronic media device may include a storage component, and a battery module that can periodically be replaced or recharged. Security techniques may provide protection against unauthorized usage of each electronic media device, and also help prevent unauthorized removal of the electronic media device from its approved location in the transit vehicle. Selective content may be accessible or downloaded via a communication node, wherein such content may include application programs or informational data specifically correlated with a media device location or a designated vehicle passenger. Selective content and/or operation capability for the electronic media device may be varied based on predetermined qualifications or passenger request.
摘要:
An electrical power transmission system includes electrical insulators arranged to electrically isolate live power lines. Surface reconditioning units are incorporated or integrated in the insulator structures. A sensor arrangement determines surface conditions of the electrical insulators in use to isolate live power lines. In response, the surface reconditioning units automatically recondition the surfaces of the in-service electrical insulators if appropriate for maintaining the electrical insulators in healthy state.
摘要:
An electrical power transmission system includes electrical insulators arranged to electrically isolate live power lines. Measurement devices are physically incorporated or integrated in the insulator structures. The measurement devices measure and report insulator properties during live wire conditions. A method includes deploying a measurement device in physical contact with an insulator in use to electrically isolate a power transmission line. This method also includes measuring properties of the insulator in use with the measurement device at substantially within time intervals corresponding to voltage zero crossings in the power transmission line.
摘要:
A high voltage power transmission system includes an insulator arranged to electrically isolate a live power transmission line and a testing device in physical contact with the insulator, The teat device measures properties of the insulator by conducting electrical tests of and/or optical examination on the insulator while it is in-service to electrically isolate the live power transmission line.
摘要:
An electrical power transmission system includes electrical insulators arranged to electrically isolate live power lines. Measurement devices are physically incorporated or integrated in the insulator structures. The measurement devices measure and report insulator properties during live wire conditions.
摘要:
A cooling system for a subterranean power line may include a cooling tube configured to house a fluid. Heat generated by the subterranean power line may be radiated and/or conducted to the cooling tube and absorbed by the fluid within the cooling tube. As the fluid heats up, it may change phase from a liquid to a gas. The hot gas may rise to a heat-exchanging condenser configured to dissipate the heat and condense the fluid back into a liquid. The cool, condensed liquid my return from the heat-exchanging condenser to the cooling tube. Risers, gas transport tubes, pressure regulation systems, fluid storage tanks, and other components described herein may increase the efficiency of the cooling system and/or otherwise improve the viability of the cooling system for subterranean power lines.
摘要:
A cooling system for a subterranean power line may include a cooling tube configured to house a fluid. Heat generated by the subterranean power line may be radiated and/or conducted to the cooling tube and absorbed by the fluid within the cooling tube. As the fluid heats up, it may change phase from a liquid to a gas. The hot gas may rise to a heat-exchanging condenser configured to dissipate the heat and condense the fluid back into a liquid. The cool, condensed liquid my return from the heat-exchanging condenser to the cooling tube. Risers, gas transport tubes, pressure regulation systems, fluid storage tanks, and other components described herein may increase the efficiency of the cooling system and/or otherwise improve the viability of the cooling system for subterranean power lines.
摘要:
A cooling system for a subterranean power line may include a cooling tube configured to house a fluid. Heat generated by the subterranean power line may be radiated and/or conducted to the cooling tube and absorbed by the fluid within the cooling tube. As the fluid heats up, it may change phase from a liquid to a gas. The hot gas may rise to a heat-exchanging condenser configured to dissipate the heat and condense the fluid back into a liquid. The cool, condensed liquid my return from the heat-exchanging condenser to the cooling tube. Risers, gas transport tubes, pressure regulation systems, fluid storage tanks, and other components described herein may increase the efficiency of the cooling system and/or otherwise improve the viability of the cooling system for subterranean power lines.
摘要:
A cooling system for a subterranean power line may include a cooling tube configured to house a fluid. Heat generated by the subterranean power line may be radiated and/or conducted to the cooling tube and absorbed by the fluid within the cooling tube. As the fluid heats up, it may change phase from a liquid to a gas. The hot gas may rise to a heat-exchanging condenser configured to dissipate the heat and condense the fluid back into a liquid. The cool, condensed liquid my return from the heat-exchanging condenser to the cooling tube. Risers, gas transport tubes, pressure regulation systems, fluid storage tanks, and other components described herein may increase the efficiency of the cooling system and/or otherwise improve the viability of the cooling system for subterranean power lines.
摘要:
A mobile phone is provided. The mobile phone includes a shell and a hardware component coupled to the shell, wherein the hardware component is selected from a set of interchangeable components having substantially the same size but different functions.