Sequentially operated modules

摘要

Method, modules and a system formed by connecting the modules for controlling payloads. An activation signal is propagated in the system from one module to the modules connected to it. Upon receiving an activation signal, the module (after a pre-set or random delay) activates a payload associated with it, and transmits the activation signal (after another pre-set or random delay) to one or more modules connected to it. The system is initiated by a master module including a user activated switch producing the activation signal. The activation signal can be propagated in the system in one direction from the master to the last module, or carried bi-directionally allowing two way propagation, using a module which revert the direction of the activation signal propagation direction. A module may be individually powered by an internal power source such as a battery, or connected to an external power source such as AC power.

主权项

1. A device for receiving a first signal from a first unit and, in response, transmitting a second signal to a second unit identical to the first unit, and for producing a control signal to control a payload in response to receiving the first signal, said device comprising:
a first connector for connecting to the first unit; a first line receiver coupled to said first connector for receiving the first signal from the first unit; a first timer coupled to said first line receiver and operative for producing the second signal that is delayed by a first time period from the first signal; a second connector, capable of mating with said first connector and configured to be connectable to the second unit; a first line driver coupled between said first timer and said second connector and operative to transmit the second signal to a line receiver of the same type as said first line receiver, in the second unit; a control circuit coupled to said first line receiver for generating the control signal in response to receiving the first signal, said control circuit having a control port couplable to control the payload by the control signal; and a single enclosure housing said first and second connectors, said first line receiver, said first line driver, said first timer and said control port.