An Underwater Depth Data Acquisition System

Abstract

The invention discloses an underwater depth data acquisition system, comprising: a deep water pressure chamber, a depth sensor, a processing board and a deep water connector; at least three depth sensors are installed inside the deep water pressure chamber, and each depth sensor The head is connected to the top of the deep-water pressure chamber; the processing board is installed inside the deep-water pressure chamber and connected to the bottom of the deep-water pressure chamber, and the processing board is connected to the tail cable plug of each depth sensor ; The deep-water connector is installed at the outer bottom of the deep-water pressure chamber, and the four-core cable plug at the base of the deep-water connector is connected to the processing board. The underwater depth data measurement system disclosed in the present invention can collect at least three channels of data at the same time, calculate the average value of at least two channels of data, and the calculation results obtained have high accuracy; even if one sensor fails, the other channels can continue to work , gives accurate depth data, and has high reliability and stability; the structural design of the deep water pressure chamber also enhances the reliability and stability of the system.

Description

technical field [0001] The invention relates to the technical field of depth data acquisition, and more specifically relates to an underwater depth data acquisition system. Background technique [0002] With the advancement of science and technology and the continuous breakthrough and improvement of underwater technology, people's research on marine scientific surveys, underwater terrain and landform scanning, large-scale ocean engineering operations and detection, marine hydrothermal sulfide collection, dam engineering detection, surface attachments on large ships, etc. Cleaning and many other areas rely more and more on the use of underwater robots. In any application scenario, each robot must know its current depth when working underwater, so as to realize the longitudinal motion control of the underwater robot, and then perform various tasks at the target depth, and at the same time prevent the deep and cause the pressurized cabin to explode. Therefore, each robot must...

AI Technical Summary

Problems solved by technology

[0003] At present, underwater robots generally carry a depth sensor as a depth data acquisition device, and the more common application method is that the depth sensor and other sensor devices are integrated on the hardware and share a set of processors. In this case, the functions are relatively integrated, and the processing Relatively high load

Another application method is to use a set of depth sensors alone, but the data is directly calculated and processed by the main control system, which occupies the resources of the main control and increases the load

The above two application methods, as the continuous operation time of the robot continues to increase, it is susceptible to interference from various aspects such as temperature and electromagnetics, resulting in a large difference between the collected depth data and the actual depth data, severe data jumps, and failures such as no data.

At the same time, when the sensor has a hardware failure, there is no replaceable depth data acquisition device, which will cause the sub-task operation to be terminated

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