Abstract: Examples of data communication using a private preamble are disclosed. In one example implementation according to aspects of the present disclosure, a data stream is detected. It is then determined whether the received data stream includes a private preamble known to the computing node. If it is determined that the data stream includes a private preamble known to the computing node, a targeted data stream intended for the computing node is received by the computing node.

Abstract: A method for attaching a relay module to a fire hydrant comprises positioning the relay module adjacent to the fire hydrant, the fire hydrant comprising a hydrant body and a bonnet coupled to the hydrant body by a plurality of fasteners, the bonnet mounted on top of the hydrant body, the relay module comprising a radio housing defining a top surface, a mast connected to the radio housing and extending upwards from the top surface, and a mounting bracket attached to the top surface, the mounting bracket engageable with the hydrant body; and securing the relay module to the fire hydrant such that the mounting bracket and a portion of the top surface is positioned beneath the bonnet.

Abstract: The present disclosure relates to an antenna attachment. In one example implementation, an antenna attachment includes an attachment body and at least one wire mounted on the attachment body and electric-field coupleable with an antenna.

Abstract: A method for attaching a relay module to a fire hydrant comprises positioning the relay module adjacent to the fire hydrant, the fire hydrant comprising a hydrant body and a bonnet coupled to the hydrant body by a plurality of fasteners, the bonnet mounted on top of the hydrant body, the relay module comprising a radio housing defining a top surface, a mast connected to the radio housing and extending upwards from the top surface, and a mounting bracket attached to the top surface, the mounting bracket engageable with the hydrant body; and securing the relay module to the fire hydrant such that the mounting bracket and a portion of the top surface is positioned beneath the bonnet.

Abstract: Antenna assemblies, which may be used in meter reading systems, are provided. One example of antenna assembly includes a first antenna vertically configured to be mounted on a top surface of a vehicle and a second antenna vertically configured to be mounted on the top surface of the vehicle. The antenna assembly also includes a receiver configured to communicate with a plurality of wireless utility meters via the first and second antennas. The first and second antennas are aligned with a direction of travel of the vehicle.

Abstract: Examples of data communication using a private preamble are disclosed. In one example implementation according to aspects of the present disclosure, a data stream is detected. It is then determined whether the received data stream includes a private preamble known to the computing node. If it is determined that the data stream includes a private preamble known to the computing node, a targeted data stream intended for the computing node is received by the computing node.

Abstract: The present disclosure relates to devices, systems, and methods for relaying data. An exemplary device includes a mast having an inner surface and an outer surface, the inner surface defining a cavity; an antenna disposed within the cavity; and a radio housing engageable with a utility structure by a mounting bracket fastened to the radio housing.

Abstract: A device for flushing a hydrant includes a stem connected to a valve of the hydrant; and an actuation system including a biased translational system coupled to the stem. An actuation system for flushing a hydrant includes a fluid; a piston assembly movable by the fluid; and a biasing element at least indirectly biasing the piston assembly towards a stop position. A method of flushing a hydrant includes operating an actuation system coupled to the hydrant, the actuation system including a stored energy device, a piston assembly coupled to a stem of the hydrant; and a biasing element coupled to the stem, the stem connected to a valve of the hydrant; and opening the valve of the hydrant by releasing energy from the stored energy device against a piston plate of the piston assembly.

Abstract: The present disclosure relates to devices, systems, and methods for relaying data. An exemplary device includes a relay module comprising: a mast having an inner surface and an outer surface, the inner surface defining a cavity; an antenna disposed within the cavity; and a mounting device coupled to the mast and engageable with a utility structure.

Abstract: The present disclosure relates to an antenna attachment. In one example implementation, an antenna attachment includes an attachment body and at least one wire mounted on the attachment body and electric-field coupleable with an antenna.

Abstract: Antenna assemblies, which may be used in meter reading systems, are provided. One example of antenna assembly comprises a first antenna vertically configured to be mounted on a top surface of a vehicle and a second antenna vertically configured to be mounted on the top surface of the vehicle. The antenna assembly also comprises a receiver configured to communicate with a plurality of wireless utility meters via the first and second antennas. The antenna assembly also comprises a circuit board communicatively connected to the first antenna, the second antenna, and the receiver, the circuit board configured to provide an impedance transformation between the first antenna and the second antenna. The first and second antennas are aligned with a direction of travel of the vehicle.

Abstract: A device for flushing a hydrant includes a stem connected to a fluid valve of the hydrant and an actuation system including a biased translational system coupled to the stem, a compressed gas, and a normally-open gas discharge valve. An actuation system for flushing a hydrant includes a fluid, a piston assembly movable by the fluid, a manual bleed valve in communication with the fluid, and a biasing element at least indirectly biasing the piston assembly towards a stop position.

Abstract: Antenna assemblies, which may be used in meter reading systems, are provided. One example of antenna assembly includes a first antenna vertically configured to be mounted on a top surface of a vehicle and a second antenna vertically configured to be mounted on the top surface of the vehicle. The antenna assembly also includes a receiver configured to communicate with a plurality of wireless utility meters via the first and second antennas. The first and second antennas are aligned with a direction of travel of the vehicle.

Abstract: The present disclosure relates to devices, systems, and methods for relaying data. An exemplary device includes a mast having an inner surface and an outer surface, the inner surface defining a cavity; an antenna disposed within the cavity; and a radio housing engageable with a utility structure by a mounting bracket fastened to the radio housing.

Abstract: The present disclosure relates to devices, systems, and methods for relaying data. An exemplary device includes a relay module comprising: a mast having an inner surface and an outer surface, the inner surface defining a cavity; an antenna disposed within the cavity; and a mounting device coupled to the mast and engageable with a utility structure.

Abstract: A resistor circuit includes a resistance control circuit and at least one insulated gate field effect transistor. The resistance control circuit includes a control signal output element including a reference transistor for generating a resistance control signal in response to an internal control signal to maintain the reference transistor at a selected resistance value and a resistance value control element including a reference resistor for generating a circuit control signal for controlling the resistance value of the reference transistor in relation to the resistance value provided by the reference resistor. The field effect transistor is controlled by the resistance control signal to provide a resistance value which is a function of the resistance value of the reference transistor (and therefore of the reference resistor) and ratios of selected physical characteristics of the reference transistor.

Abstract: A high performance communications interface device for connecting a high speed computer to a high performance communications bus. The high performance communications interface device includes a high performance communications interface device processor, a source interface, a destination interface and at least one I/O processor which controls the transfer of data to the high speed computer from the high performance communications bus and from the high speed computer to the high performance communications bus.

Abstract: The coil form for a helical resonator is comprised of two sections connected by a flexible joint. The coil form/winding assembly is positioned within a cavity such that the ends of the coil forms are affixed to the cavity walls. A tuning screw threads into the cavity wall in tuning relation to the coil.The resulting resonator structure maintains a low frequency drift characteristic over a wide temperature range due to the fixed tuning screw to coil spacing. Strain to the structure due to thermal stress is relieved by the flexible joint.