Base-station-like energy supply encryption method based on RFID passive transmission

Abstract

The invention relates to the technical field of data transmission, in particular to a base-station-like energy supply encryption method based on RFID passive transmission, which comprises the following steps: a launching tower silently and continuously receives commands of a reader / receiving end in a local area; when a Query command sent by the reader / receiving end is received, the launching tower starts to send a continuous wave with encrypted information to the tag for encryption and reflection communication of the tag; the reader receives the encrypted information of the reflected wave with the continuous wave sent by the launching tower from the label, and performs corresponding decoding at a receiving end; by additionally arranging the launching tower, energy supply is guaranteed, and meanwhile the encryption effect is guaranteed; and the transmission stability and encryption requirements are improved.

Description

technical field [0001] The invention relates to the technical field of data transmission, in particular to a base station-like energy supply encryption method based on RFID passive transmission. Background technique [0002] In the future Internet of Things, the network nodes can be passive (battery free), that is, the nodes themselves are not equipped with or mainly rely on power devices such as batteries, but obtain energy from the environment to support data perception, transmission and distributed computing . This future new type of network is also called passive transmission network. The passive transmission network is a wireless network with energy as the center and data as the core, and has the following characteristics: [0003] 1. Energy shock [0004] Since nodes can obtain energy from the surrounding environment, the energy of nodes is no longer a single static change trend from high to low, but a dynamic state of high and low. When a node is performing transm...

AI Technical Summary

Problems solved by technology

[0005] 2. Energy inconstancy

[0006] There is randomness and instability in the energy acquisition of passive transmission network nodes, which leads to unbalanced distribution of energy in the entire network, with large differences, and low collaborative work ability of passive nodes

[0007] 3. Energy limitation

[0008] The power of environmental energy collected by microchips is very weak, generally on the order of nanowatts (nW) to microwatts (μW), and microsensors are limited by their external dimensions, and the ability of nodes to store electricity is limited.

[0009] 4. Connectivity vulnerability

Due to the oscillating nature of energy, the connectivity of the network is fragile and intermittent, making it difficult to maintain constant connectivity

[0011] 5. Ultra-low duty cycle

However, the existing passive tags can only save energy costs through simple encoding, but at the expense of better and more complex encryption and communication algorithms

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