Abstract:
Systems and methods for high efficiency power conversion are provided. In one embodiment, a high efficiency electric power converter circuit comprises: an electric power converter that provides a first electric power output; a storage device that provides a second electric power output; and a power arbitrating switch that receives the first and second electric power outputs and selectively supplies a third electric power output using at least one of the first electric power output and the second electric power output. The switch is configured with a first sensor to measure a charge level of the device and with a second sensor to measure a power demand drawn from the third electric power output. The power arbitrating switch switches the third electric power output between being supplied from the first electric power output and being supplied from the second electric power output based on the power demand and the charge level.
Abstract:
A direct current (DC) power distribution system is provided. The system includes a passive splitter and an active splitter. The passive splitter includes an input port that is configured to receive a first DC power input and multiple output ports that are configured to provide a first DC power outputs to corresponding ones of multiple power only devices. The active splitter includes an input port that is configured to receive a second DC power input and network data corresponding to at least one network communications data channel and multiple output ports that are configured to provide second DC power outputs and network communications data to corresponding power and/or data devices.
Abstract:
Systems that are configured to deliver electric power via an indoor telecommunications network infrastructure are provided herein. A system may include a power adaptor that is inside a building and that is electrically connected to an indoor telecommunications network infrastructure that is inside the building. Moreover, the system may include an outdoor network interface apparatus that is outside of the building and that is configured to receive electric power via a wired connection to the indoor telecommunications network infrastructure. Related methods and apparatuses are also provided.
Abstract:
An asset having an associated tag is located using an unmanned vehicle having a tag reader. The associated tag has an identifier associated with the asset to be located stored therein. The unmanned vehicle is moved throughout a space to be searched for the asset to be located. Read operations are performed using the tag reader in the unmanned vehicle at various locations in the space to be searched. In response to successfully reading the tag associated with the asset to be located, that the asset to be located has been located is signaled. Examples of unmanned vehicles include flying drones and wheeled or continuous track vehicles. Other embodiments are disclosed.
Abstract:
Methods for aligning base station antennae at a cell site, the base station antenna which may include a first antenna, a second antenna, and a third antenna, each providing coverage of a respective sector of the cell site, may involve taking measurements of signals received in regions of antennae coverage overlap and adjusting azimuth angles of one or more of the antennae to substantially equalize received signal strengths.
Abstract:
Methods of operating a cellular radio are provided in which a first power supply signal is transmitted from a power supply to a wireless power unit at least in part over a power cable. A second power supply signal is wirelessly transmitted from the wireless power unit to the cellular radio to power the cellular radio. Data is transmitted from a baseband unit that is associated with the cellular radio to a wireless transceiver at least in part over a data cable. This data is wirelessly transmitted from the wireless transceiver to the cellular radio. The data is then transmitted through an antenna that is coupled to the cellular radio.
Abstract:
Tower systems suitable for use at cellular base stations include a tower, an antenna mounted on the tower, a remote radio head mounted on the tower and a power supply. A power cable having a power supply conductor and a return conductor is connected between the power supply and the remote radio head. A shunt capacitance unit that is separate from the remote radio head that is electrically coupled between the power supply conductor and the return conductor of the power cable.
Abstract:
Certain aspects are directed to an interceptor system for characterizing digital data communicated between certain points in a telecommunication system. The interceptor system includes an interface device and a processing device. The interface device can retrieve data from at least one communication link between a radio frequency processing unit and a baseband processing unit of a telecommunication system. The data includes digital data communicated between the radio frequency processing unit and the baseband processing unit. The processing device can determine an interface link protocol for communicating with terminal equipment via the telecommunication system. The interface link protocol can be determined based on an organization of the data retrieved from the communication link.