Patent ID: 8295059
Filing Date: 2012-10-23
Classification: G08G

Abstract:
1. A method of extending the service life of a plurality of aging fixed-size traffic-control cabinets, within at least one traffic-control network, comprising the steps of: a) identifying at least one required additional function to extend the service life of at least one aging fixed-size traffic-control cabinet of such plurality of aging fixed-size traffic-control cabinets; b) identifying at least one new electronic circuit enabling the at least one required additional function when integrated within the at least one aging fixed-size traffic-control cabinet; c) designing at least one modular unit capable of adapting the at least one new electronic circuit to interoperate with the at least one aging fixed-size traffic-control cabinet, such at least one modular unit comprising d) mounting such at least one modular unit within the at least one aging fixed-size traffic-control cabinet substantially without removal or replacement of existing components of the at least one aging fixed-size traffic-control cabinet; and e) operably enabling such at least one required additional function within the at least one aging fixed-size traffic-control cabinet by electrically coupling the at least one new electronic circuit to the at least one existing electrical circuit of the at least one aging fixed-size traffic-control cabinet using such at least one signal-input coupler and such at least one signal-output coupler of such least one modular unit; f) wherein the service life of the at least one aging fixed-size traffic-control cabinet is extended an appreciable time without removal or replacement of existing components.