According to typical inventive practice, each inventive sensor node performs computer processing that is tri-chotomized in a progressive, power-regulating scheme of three processors, namely, a low-performance processor, a middle-performance processor (which remains in sleep mode until activated upon demand for a middle-computation function), and a high-performance processor (which remains in sleep mode until activated upon demand for a high-computation function). The low-performance processor performs low computation functions such as routine sensing functions. The middle-performance processor performs middle-computation functions such as validative sensing functions. The high-performance processor performs high computation functions such as remedial communicative functions. Each sensor node has one or more transceivers for wirelessly transmitting and receiving radio signals (e.g. remedial communication) to and from transceivers of other sensor nodes. Some transceivers may be specifically dedicated to wirelessly communicating “wake-up” signals among nodes. Inventive practice is notably efficacious in furtherance of situational awareness of damage events onboard naval ships.
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