摘要:
A beacon device is provided in proximity to said entity. A request to locate said entity is triggered on a central control unit. In response to the request to locate said entity, said control unit generates specification data for a unique radio signal identifier, sends an activation request and said specification data to said beacon device, and provides said specification data to a portable device and storing said specification data on the portable device. In response to receiving said activation request, said beacon device sends a radio signal identifier generated from said specification data. Signals are received on said portable device and compared with the specification data stored on the portable device. Based on the results of the comparison by said portable device, information is provided about at least one of a direction and distance to said entity. The location of said entity is detected using said direction information.
摘要:
A backup bearing for use with magnetic bearings to support a rotating shaft in the event that the magnetic bearings fail due to the loss of electric power. The backup bearing includes a housing and a fluid film bearing element which is adapted to passively float in the housing and with the shaft during normal operation of the magnetic bearings and which is adapted to support the rotating shaft on a film of fluid if the magnetic bearings fail.
摘要:
An air cycle machine for producing a supply of cooled air and including a compressor rotor fixed to a shaft which is driven by a turbine rotor, the turbine serving to expand air which is pressurized by the compressor. Magnetic bearings support the shaft radially in a housing for rotation about a precisely established axis while a magnetic thrust bearing keeps the shaft in a precisely fixed axial position. The housing and the bearings are constructed as two split sections to permit the housing and the bearings to be separated radially and facilitate repair and/or replacement of the shaft and other internal components.
摘要:
An air cycle machine for producing a supply of cooled air and including a compressor rotor fixed to a shaft which is driven by a turbine rotor, the turbine serving to expand air which is pressurized by the compressor. Magnetic bearings support the shaft radially in a housing for rotation about a precisely established axis while a magnetic thrust bearing keeps the shaft in a precisely fixed axial position. The housing and the bearings are constructed as two split sections to permit the housing and the bearings to be separated radially and facilitate repair and/or replacement of the shaft and other internal components.
摘要:
The invention, in an embodiment, allows the control of several hardware ports via two redundant I2C paths. Switching between the two I2C paths is achieved by using a redundant control device, which performs the switch by tracking if incoming data transfers were completed with I2C stop condition.
摘要:
A method of kerf formation and treatment for solar cells and semiconductor films and a system therefor are described. A semiconductor film is backed by a first metal layer and topped by a second metal layer. A reference feature is defined on the film. An ultraviolet laser beam is aligned to the reference feature. A kerf is cut along the reference feature, using the ultraviolet laser beam. The beam cuts through the second metal layer, through the film and through the first metal layer. Cutting leaves debris deposited on walls of the kerf. The debris is cleaned off of the walls, using an acid-based solvent. In the case of solar cells, respective first terminals of the solar cells are electrically isolated by the cleaned kerf, and respective negative terminals of the solar cells are electrically isolated by the cleaned kerf.
摘要:
A method for dynamically assigning a plurality of storage devices to a plurality of controllers within a storage unit, the method including: sensing each storage device from the plurality of storage devices; assigning each one of the storage devices to a respective controller from the plurality of controllers; monitoring at least one of each storage device, each controller, and a link between each storage device and the respective controller; upon a failure of at least one of the link, one of the storage devices and one of the controllers, generating a list of components; transmitting the list to another controller; and establishing a new assignment for each of the components on the list. A storage unit and a computer program product are provided.
摘要:
A beacon device is provided in proximity to said entity. A request to locate said entity is triggered on a central control unit. In response to the request to locate said entity, said control unit generates specification data for a unique radio signal identifier, sends an activation request and said specification data to said beacon device, and provides said specification data to a portable device and storing said specification data on the portable device. In response to receiving said activation request, said beacon device sends a radio signal identifier generated from said specification data. Signals are received on said portable device and compared with the specification data stored on the portable device. Based on the results of the comparison by said portable device, information is provided about at least one of a direction and distance to said entity. The location of said entity is detected using said direction information.