摘要:
A reader device for locating and tracking multiple tags includes a plurality of closely packed antenna circuits and at least one controller configured to control the plurality of closely packed antenna circuits. The at least one controller is configured to activate one or more of the antenna circuits to generate at least one resonance signal field configured to interrogate at least one tag associated with the one or more active antenna circuits while substantially preventing or reducing cross-coupling of signals between the one or more active antenna circuits and at least one antenna circuit within the at least one resonance signal field to a sufficiently low level, wherein the sufficiently low level substantially prevents misreads from unwanted tags, to thereby track the multiple tags in a substantially controlled manner.
摘要:
An electronic device includes an enclosure for the electronic device and a duct extending from an interior to an exterior of the enclosure to exhaust airflow from the enclosure. The electronic device further includes an active noise control mechanism. The active noise control mechanism includes an internal sensor, an external sensor, and an acoustic wave generator. The internal sensor is arranged within the enclosure to sense a noise and generate an internal sensor output, and the external sensor is arranged outside of the enclosure to detect sounds and generate an external sensor output. Based on the internal sensor output and the external sensor output, the acoustic wave generator generates an acoustic wave within the duct to reduce the noise.
摘要:
A method and system of tracking devices uses imaging and optionally tags. Tracking is performed when the identification information associated with the devices are initially received and exposed towards a scanning bar in an enclosure. This scanning bar scans at one or more predetermined intervals the one or more devices in the enclosure of hardware. The system for tracking devices includes an enclosure capable of receiving one or more devices positioned to expose identification information related to each device and a scanning bar movably coupled to the enclosure that passes over each of the one or more devices and captures images of the identification information exposed by each of the one or more devices.
摘要:
A method by which one node can search for and retrieve information from another node. A message identifying the sought-for information item and an address is created at a first node. The address identifies a repository for the sought-for information. A second node receives the contents of this message and responds with the information item if the item is available. Otherwise, the second node propagates the message to other nodes. The message is propagated from node to node until it reaches a node having the sought-for information item. If this node can connect to the specified address, it sends the information item to the repository. Otherwise, the node adds the information item to the message, which is propagated to other nodes until the message reaches a node that can connect with the address. The information item can then be retrieved from the repository.
摘要:
A method and system of tracking devices uses imaging and optionally tags. Tracking is performed when the identification information associated with the devices are initially received and exposed towards a scanning bar in an enclosure. This scanning bar scans at one or more predetermined intervals the one or more devices in the enclosure of hardware. The system for tracking devices includes an enclosure capable of receiving one or more devices positioned to expose identification information related to each device and a scanning bar movably coupled to the enclosure that passes over each of the one or more devices and captures images of the identification information exposed by each of the one or more devices.
摘要:
A reader device for locating and tracking multiple tags includes a plurality of closely packed antenna circuits and at least one controller configured to control the plurality of closely packed antenna circuits. The at least one controller is configured to activate one or more of the antenna circuits to generate at least one resonance signal field configured to interrogate at least one tag associated with the one or more active antenna circuits while substantially preventing or reducing cross-coupling of signals between the one or more active antenna circuits and at least one antenna circuit within the at least one resonance signal field to a sufficiently low level, wherein the sufficiently low level substantially prevents misreads from unwanted tags, to thereby track the multiple tags in a substantially controlled manner.
摘要:
An apparatus for capturing images and barcodes. The apparatus has an image-sensing device and a lens having a variable-focal-length region and a substantially fixed-focal-length region. The variable-focal-length region focuses light onto a first region of the image-sensing device and the substantially fixed-focal-length region focuses light onto a second region of the image-sensing device. The variable-focal-length region varies such that different portions of that region of the lens focus objects at different distances from the lens in different areas of the first region of the image-sensing device. Thus, the device is able to focus, in the first region of the image-sensing device, objects at varying distances from the apparatus.
摘要:
Systems and methods of disaggregating power load are provided. An example of a method is carried out by program code stored on non-transient computer-readable medium and executed by a processor. The method includes receiving time series data representing total energy consumption. The method also includes identifying distinguishing features in the time series data. The method also includes identifying energy consumption constituents of the total energy consumption based on the features.
摘要:
Various circuit board fluid cooling systems and methods of using the same are disclosed. In one aspect, a method of manufacturing is provided that includes coupling a first member to a circuit board where the first member has a first opening with a first internal footprint. A heat exchanger is removably coupled to the first member to transfer heat from at least one component of the circuit board. The heat exchanger has an external footprint adapted so that at least a portion of the heat exchanger fits in the first opening. A plate is coupled to the circuit board to transfer heat from at least one component of the circuit board. A fluid supply line and a fluid return line are coupled to the heat exchanger such that one of the fluid supply line and the fluid return line is thermal contact with the plate to transfer heat therefrom.
摘要:
An electronic device includes an enclosure for the electronic device and a fan to create an airflow for cooling electronic components contained in the enclosure. A port extends from an interior to an exterior of the enclosure and is arranged to allow airflow to pass therethrough, where the port comprises a port duct and an end having curved lips. An active noise control device detects a noise generated by the fan and generates an acoustic wave to reduce the noise.