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A wireless communication monitoring system for water and underwater

A wireless communication and monitoring system technology, applied in transmission systems, electrical components, etc., can solve decoding errors, increase bit error rate and other problems, reduce decoding errors, reduce development costs and production costs, and improve technical index performance Effect

Active Publication Date: 2021-04-13
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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  • A wireless communication monitoring system for water and underwater

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Embodiment Construction

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

[0009] Such as 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 chi...

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Abstract

The invention belongs to the technical field of wireless communication, and relates to a wireless communication monitoring system used on water and underwater, including a water system part and an underwater system part. A wireless communication monitoring system for above water and underwater of the present invention can realize two-way communication. The above water system part sends out various instructions to the underwater target and can receive the information uploaded by the underwater target, so that the work of the current target can be monitored. situation. The system adopts time code technology, and DDS technology used in the encoding process. The combination of ultra-low frequency carrier and information is realized by software programming, which greatly reduces the decoding errors caused by signal phase interference and improves the technical performance of the system. , reducing system development costs and production costs.

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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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/40H04B1/44H04B13/02
CPCH04B1/40H04B1/44H04B13/02
Inventor 王平李喜发
Owner DALIAN CHANGZHENG PHOTOELECTRIC TECH