Patent ID: 6490976
Filing Date: 2002-12-10
Classification: F42D

Abstract:
A pyrotechnic initiation system comprising:an igniter controller; at least one signal repeater; a multiplicity of smart igniters, wherein at least a plurality of said multiplicity of smart igniters have identical addresses; a first two wire communications cable connecting the igniter controller to the at least one signal repeater, and a second two wire communications cable connecting the at least one signal repeater to the said multiplicity of smart igniters; wherein the at least one signal repeater further comprises: a first analog transmission line receiver connected to the first two wire communications cable; a microprocessor, in data receiving relation to the analog transmission line receiver; a first analog transmitter in data receiving relation to the microprocessor and connecting to the second two wire communication cable; a second analog transmission line receiver connecting to the second two wire communications cable, and connecting to the microprocessor in data transmitting relation; a second analog transmitter in data receiving relation to the microprocessor and connecting to the first two wire communications cable; and a power supply connecting to and drawing power from the first two wire communications cable, the power supply connecting to the first analog transmission line receiver, the second analog line transceiver, the first analog transmitter, the second analog transmitter and the data controller; wherein at least two of said plurality of said multiplicity of smart igniters having identical addresses are separated by at least one signal repeater, so that the at least one signal repeater allows reuse of bus addresses so that each smart igniter of said multiplicity of smart igniters may be uniquely addressed by the smart igniter controller.