Ultrasonic communication method and ultrasonic communication device

Abstract

The embodiment of the invention discloses an ultrasonic communication method and an ultrasonic communication device. Ultrasonic communication is realized; a crowded wireless frequency resource is unnecessary to occupy; and simultaneously, the anti-interference capability is high. The method in the embodiment of the invention comprises the following steps that: an ultrasonic transducer receives an electric signal; the ultrasonic transducer converts the electric signal into ultrasonic wave and transmits the ultrasonic wave to an ultrasonic sensor through a density medium; and the ultrasonic sensor detects the ultrasonic wave and converts the ultrasonic wave into the electric signal. The embodiment of the invention further provides an ultrasonic communication device. By means of the embodiment of the invention, ultrasonic communication can be realized; the crowded wireless frequency resource is unnecessary to occupy; and simultaneously, the anti-interference capability is high.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to an ultrasonic communication method and an ultrasonic communication device. Background technique [0002] The smart meter reading system in the community and the central heating household heat metering and other related systems must perform data communication, so stable and reliable communication requirements are required. [0003] At present, wireless communication is used, and this problem is solved by providing a wireless transmission source. [0004] However, each household needs up to four wireless transmission sources, and general residential buildings generally have multiple households on one unit floor, so a maximum of N*4 wireless transmission sources are required, and the frequency resources reserved for these applications in the country itself are very limited , and share the frequency with amateur radio communication, it will inevitably cause serious interferenc...

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Problems solved by technology

[0004] However, each household needs up to four wireless transmission sources, and general residential buildings generally have multiple households on one unit floor, so a maximum of N*4 wireless transmission sources are required, and the frequency resources reserved for these applications in the country itself are very limited , and share the frequency with amateur radio communication, it will inevitably cause serious interference, and the communication channel is very crowded. Secondly, wireless communication is in residential buildings, blocked by various walls, resulting in greatly shortened communication distance, poor control of wireless signal transmission, and increased power. Larger, the interference increases, and the communication effect is not great in residential buildings because of the obstruction of walls, etc.

Therefore, the current solution is mainly to occupy crowded radio frequency resources, and at the same time the anti-interference ability is not strong

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