Electrical system of carrier rocket

The invention provides an electrical system of a carrier rocket. The electrical system is in a layered structure. Each layer is corresponding to one stage of the carrier rocket; and layers are in communication connections via optical fibers. Each layer of the electrical system comprises at least one aggregation node and a plurality of wireless sensor nodes, wherein the wireless sensor nodes can collect a sensing signal and send the sensing signal via a wireless communication way; the aggregation node acquires the sensing signal collected by the wireless sensor nodes via a wireless communication way, and transmits the acquired sensor signal via optical fibers; and an emitter is connected with the aggregation node of each layer via optical fibers to acquire the sensing signal from the optical fibers, and emits a wireless signal to a ground control based on the sensing signal. Environmental parameters of the carrier rocket during the flight can be acquired by the electrical system, so detection parameters can be provided for a fault detection and processing system; and besides, the electrical system is layered, so system size and weight can be reduced.