Abstract: A communication device is arranged to transmit a character string that identifies the device. The character string comprises a plurality of substrings, each of which comprises a sequence of characters. A property of the device is identified using a data structure having multiple nodes, wherein each of a plurality of nodes stores a respective hash value. Each hash value corresponds to the hash value that would be generated by performing a hash function on the sequence of characters of each substring. The data structure comprises references between the plurality of nodes, and the references define a path through the data structure that identifies the device. A node on the path is associated with a property of the device.

Abstract: A communication device is arranged to transmit a character string that identifies the device. The character string comprises a plurality of substrings, each of which comprises a sequence of characters. A property of the device is identified using a data structure having multiple nodes, wherein each of a plurality of nodes stores a respective hash value. Each hash value corresponds to the hash value that would be generated by performing a hash function on the sequence of characters of each substring. The data structure comprises references between the plurality of nodes, and the references define a path through the data structure that identifies the device. A node on the path is associated with a property of the device.

Abstract: Various implementations are disclosed for self-contained, non-intrusive data collection in ammunition. In some implementations, a gun is loaded with a non-explosive, non-firing round of ammunition containing a data acquisition system. Such a data-collecting round of ammunition may be loaded into the gun according to the same procedures as live rounds of ammunition, and, in particular, may be loaded into a firing position immediately after a preceding live round has been fired. In this way, the data-collecting round of ammunition is able to experience temperature or other conditions that are experienced essentially identically by live rounds. After collecting related data while in the firing position, the data-collecting round may be removed from the gun, for analysis of the data for, for example, development of hot gun misfire safety procedures.

Abstract: Various implementations are disclosed for self-contained, non-intrusive data collection in ammunition. In some implementations, a gun is loaded with a non-explosive, non-firing round of ammunition containing a data acquisition system. Such a data-collecting round of ammunition may be loaded into the gun according to the same procedures as live rounds of ammunition, and, in particular, may be loaded into a firing position immediately after a preceding live round has been fired. In this way, the data-collecting round of ammunition is able to experience temperature or other conditions that are experienced essentially identically by live rounds. After collecting related data while in the firing position, the data-collecting round may be removed from the gun, for analysis of the data for, for example, development of hot gun misfire safety procedures.