摘要:
Methods and systems for sending a broadcast message in frequency hopping and other systems. Instead of sending a complete message separately to each device, a relatively small packet or “chirp” is sent. These chirps are either targeted at known devices or sent in a manner to sweep the RF band. Devices that hear the chirps get information about the channel and/or time that the broadcast data will be sent. These devices then listen for the broadcast data as instructed, e.g., at the specified time on the specified channel. A system may alternatively, or in addition, use a scheduled hopping sequence break as a broadcast moment. Such a broadcast moment can be scheduled to periodically interrupt the node hopping sequences so that, at such times, many or all nodes are scheduled to be on the same channel for potential broadcasts.
摘要:
Methods and systems for sending a broadcast message in frequency hopping and other systems. Instead of sending a complete message separately to each device, a relatively small packet or “chirp” is sent. These chirps are either targeted at known devices or sent in a manner to sweep the RF band. Devices that hear the chirps get information about the channel and/or time that the broadcast data will be sent. These devices then listen for the broadcast data as instructed, e.g., at the specified time on the specified channel. A system may alternatively, or in addition, use a scheduled hopping sequence break as a broadcast moment. Such a broadcast moment can be scheduled to periodically interrupt the node hopping sequences so that, at such times, many or all nodes are scheduled to be on the same channel for potential broadcasts.
摘要:
The invention involves an apparatus, comprising a template body 101 with a guide portion 110 wherein the guide portion 110 includes upper 111 and lower 112 guide portions, and a guide portion slot 113. The template body 101 includes a first and second countersink guide channels. The apparatus includes a first spacer coupled to the guide portion slot 113 in a repeatably removeable manner.
摘要:
The invention involves a tool, which includes a tool body with first and second flanged portion spaced apart by a first upper cable opening, and a ring positioned proximate thereto. The ring includes a ring opening positioned proximate to the first upper cable opening. The tool body includes a lower cable opening positioned away from the ring.
摘要:
A carabiner includes a carabiner body, and a gate assembly coupled to the carabiner body. The combiner includes a sleeve bracket, which includes first and second sleeve bracket bodies coupled to the gate assembly, and a stationary bracket, which includes first and second stationary bracket bodies coupled to a distal portion of the carabiner body. An elongate member extends through the sleeve bracket and stationary bracket, wherein the gate assembly is moveable between open and closed conditions in response to apply a force to the elongate member.
摘要:
A pole assembly includes a chuck, and the chuck includes a chuck body with opposed fastener openings extending therethrough, and a shank. The pole assembly includes a socket piece, and the socket piece includes a conduit fitting body and a socket piece body, and opposed fastener openings extending through the conduit fitting body, and a socketed body opening extending through the socket fitting body. The pole assembly includes a conduit which extends through a distal chuck body opening of the chuck and an unsocketed body opening of the conduit fitting body.
摘要:
A pole assembly includes a chuck, and the chuck includes a chuck body with opposed fastener openings extending therethrough, and a shank. The pole assembly includes a socket piece, and the socket piece includes a conduit fitting body and a socket piece body, and opposed fastener openings extending through the conduit fitting body, and a socketed body opening extending through the socket fitting body. The pole assembly includes a conduit which extends through a distal chuck body opening of the chuck and an unsocketed body opening of the conduit fitting body.
摘要:
The invention involves a tool, which includes a tool body with first and second flanged portion spaced apart by a first upper cable opening, and a ring positioned proximate thereto. The ring includes a ring opening positioned proximate to the first upper cable opening. The tool body includes a lower cable opening positioned away from the ring.
摘要:
The invention involves a nozzle assembly, comprising a nozzle body, and a brush assembly coupled to the nozzle body. The brush assembly includes a threaded fitting and nozzle body coupled thereto. The threaded fitting includes an opening extending therethrough. The nozzle assembly further includes a resilient tube coupled to the threaded fitting. The nozzle assembly is useful for removing dust and debris from openings, such as those formed with a drill and drill bit in concrete.
摘要:
A carabiner includes a carabiner body, and a gate assembly coupled to the carabiner body. The carabiner includes a sleeve bracket, which includes first and second sleeve bracket bodies coupled to the gate assembly, and a stationary bracket, which includes first and second stationary bracket bodies coupled to a distal portion of the carabiner body. An elongate member extends through the sleeve bracket and stationary bracket, wherein the gate assembly is moveable between open and closed conditions in response to apply a force to the elongate member.