Underwater acoustic electronic tag for identity authentication and control method thereof

Abstract

The invention discloses an underwater acoustic electronic tag for identity authentication. The underwater acoustic electronic tag comprises a stimulation receiving module, an acoustic tag module, a transmitting module and a power supply module, wherein the power supply module is used for supplying electricity to the stimulation receiving module, the acoustic tag module and the transmitting module; the stimulation receiving module establishes communication connection with a receiving-sending-integrated underwater acoustic transducer and is connected with the acoustic tag module to send a command signal received from the receiving-sending-integrated underwater acoustic transducer into the acoustic tag module; the output end of the acoustic tag module is connected with the transmitting module; and the acoustic tag module acquires relevant information of underwater devices after processing the signal and sends the information from the transmitting module back to a card reader. According to the underwater acoustic electronic tag for the identity authentication, the electronic tag can be used for realizing underwater identity authentication and can contain the relevant information of the underwater devices, a plurality of tags can be simultaneously identified, and great conveniences are provided to the acquiring of the device information of each port. The invention further discloses a control method of the underwater acoustic electronic tag for the identity authentication.

Description

technical field [0001] The invention belongs to the field of underwater acoustic engineering and marine engineering, and in particular relates to an acoustic smart label and a control method thereof which can be used to obtain relevant information of underwater equipment in a certain sea area or port. Background technique [0002] With the increasing demand for resources in social production and the depletion of land resources, people pay more and more attention to the development and utilization of marine resources, and people's activities in the ocean are bound to become more and more frequent. In order to effectively guarantee marine security, in a specific sea area or port, underwater equipment such as submarines, underwater vehicles (AUVs), underwater unmanned vehicles (UUVs), and water frogs need to be identified. [0003] At present, radio frequency identification (RFID) technology is widely used on land to realize identification. RFID is a contactless automatic iden...

AI Technical Summary

Problems solved by technology

From a technical point of view, RFID technology transmits information through electromagnetic waves. Due to the particularity of the underwater environment, electromagnetic waves attenuate extremely fast underwater, and the propagation distance is limited, so they cannot be transmitted underwater. Therefore, electronic tags based on this technology cannot be realized. underwater identification

In recent years, the surface acoustic wave (SAW) tag based on surface acoustic wave technology, which has developed rapidly in recent years, uses the conversion process of electromagnetic waves and surface acoustic waves, and uses the reflection grid on the piezoelectric material to reflect the surface acoustic wave, so that the sound wave carries Specific coded information, the surface acoustic wave and electromagnetic wave conversion process is performed again, and the specific information carried by the surface acoustic wave is sent out in the form of electromagnetic waves, which can be used on liquid objects, but the SAW tag is a purely passive tag and does not have any data processing capabilities. , the label information cannot be modified and multiple labels cannot be identified at the same time, and the intelligent identification of labels cannot be realized

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