Detection apparatus, system and method based on fiber communication

Abstract

The invention relates to a detection apparatus, system and method based on fiber communication. The system includes a detection apparatus based on fiber communication, a host computer and a computer. The detection apparatus is used for obtaining a pressure signal and a temperature signal, converting the pressure signal and the temperature signal into a first optical signal and a second optical signal respectively, and sending the optical signals to the host computer. The host computer converts the first optical signal and the second optical signal into a first electric signal and a second electric signal respectively, and sends the electric signals to the computer through a 485 bus module. The computer calculates ocean depth information according to the first electric signal, and calculates ocean temperature information according to the second electric signal. The system has the characteristic of high anti-interference capability, high transmission rate, long transmission distance and the like through utilization of fiber communication. Data collected by a data acquisition module in a deserted type probe is transmitted to the computer in real time. In this way, the problem that the probe descending time is needed to estimate the ocean depth is solved, and no restrictions are set on the descending speed and the issuing mode of a probe.

Description

technical field [0001] The invention relates to the technical field of marine environment information monitoring, in particular to a detection device, system and method based on optical fiber communication. Background technique [0002] The expendable bathythermograph (XBT for short) can quickly obtain the ocean temperature profile without affecting the ship's navigation status, and is used to solve the problem of marine environmental parameter measurement when the ship is maneuvering. It is a very important measurement equipment and measurement method for underwater acoustic detection and other aspects. [0003] XBT is mainly composed of attitude control components, temperature sensors, signal transmission lines, etc. The attitude control part on the probe makes the probe descend in the sea water according to certain rules. After launching the XBT, when the probe reaches the sea surface, the timer on the data acquisition board starts counting, so that the depth value of t...

AI Technical Summary

Problems solved by technology

The present invention uses a temperature sensor and a pressure sensor to directly measure ocean temperature and depth data, more accurately measures seawater depth data, and obtains depth data information with high accuracy, good repeatability and consistency; the use of optical fiber communication has strong anti-interference ability, transmission With the characteristics of high speed and long transmission distance, the data collected by the data acquisition module in the disposable probe is transmitted to the computer in real time, which solves the problem of estimating the depth of the ocean through the probe's descent time. There is no limit to the probe's descent speed and delivery method

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