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Overwater and underwater wireless communication monitoring system

A wireless communication and monitoring system technology, applied in transmission systems, electrical components, etc., can solve problems such as increasing bit error rate, decoding errors, etc., to reduce decoding errors, reduce development costs and production costs, and improve the performance of technical indicators Effect

Active Publication Date: 2019-12-20
DALIAN CHANGZHENG PHOTOELECTRIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the multiple propagation paths of underwater electromagnetic signals and the interference of ocean waves, etc., phase interference will be generated on the same signal, which will cause errors in decoding and increase the bit error rate.

Method used

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  • Overwater and underwater wireless communication monitoring system

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Embodiment Construction

[0008] The present invention will be further described below in conjunction with accompanying drawing.

[0009] like figure 1 As shown, a wireless communication monitoring system for water and underwater, including the water system part and the underwater system part, wherein the water system part includes a 2.4GHz communication module, display touch keys, the first STM32F103VET microcontroller, the first DDSML2037 A chip frequency synthesizer, a first VGA automatic gain amplifier, a first power amplifier and a transmitting and receiving switch sequentially connected to it, a first preamplifier, a first program-controlled amplifier, a first signal filter, a second VGA automatic gain amplifier and The first signal demodulator, in addition, it also includes magnetic dipole electric dipole conversion switch, magnetic dipole antenna and first electric dipole antenna; The underwater system part includes the second STM32F103VET single-chip microcomputer, the second DDSML2037 chip f...

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Abstract

The invention belongs to the technical field of wireless communication, and relates to an overwater and underwater wireless communication monitoring system, which comprises an overwater system part and an underwater system part. The overwater and underwater wireless communication monitoring system can realize two-way communication, and the overwater system part sends various instructions to an underwater target and can receive information uploaded by the underwater target, so that the working condition of the current target can be monitored. According to the system, the time code technology isadopted, ultralow-frequency carrier waves and information combinations of the DDS technology used in the encoding process are achieved through software programming, decoding errors caused by signal phase interference are greatly reduced, the technical index performance of the system is improved, and the development cost and the production cost of the system are reduced.

Description

technical field [0001] The invention relates to a wireless communication monitoring system used on water and underwater, and belongs to the technical field of wireless communication. Background technique [0002] As the underwater electromagnetic communication, the method of ultra-low frequency or extremely low frequency is basically used at present. In the past, methods such as phase PSK or BPSK were used in the signal modulation method of such a narrow frequency bandwidth. Since the underwater electromagnetic signal has multiple propagation paths and the interference of ocean waves will produce phase interference on the same signal, this will cause errors in decoding and increase the bit error rate. Contents of the invention [0003] In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a wireless communication monitoring system used on water and underwater. The system can realize two-way communication, and the part of...

Claims

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Application Information

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IPC IPC(8): H04B1/40H04B1/44H04B13/02
CPCH04B1/40H04B1/44H04B13/02
Inventor 王平李喜发
Owner DALIAN CHANGZHENG PHOTOELECTRIC TECH