Background analysis:

Ocean resources are distributed in a vast area, especially strategic resources such as mineral resources and petroleum resources. Therefore, in recent years, all countries have used various methods to compete for sea dominance, which is also a fierce competition in ocean resource prospecting technology. The environment under the sea is harsh and complicated, and unpredictable dangers will often occur if there is manned underwater vehicle detecting. Currently, with the rapid development of artificial intelligence in science and technology, most countries are harnessing the underwater robot detection resources. The use of underwater robots equipped with Guochuang Micro-magnetic Basic Sensor Array can detect marine minerals, petroleum and other resources online in real time, providing important raw data for subsequent exploitation and utilization. At the same time, the magnetic memory effect underwater robot magnetic detection system can also be used for real-time online NDT of underwater pipelines, etc., and can also accurately locate and report to the control terminal for decision-making.

 Principle:

The magnetic anomaly target contains materials or currents with ferromagnetic characteristics (such as iron, cobalt, nickel, etc.), and the magnetic field strength is inversely proportional to the target distance cube, H∝M/R³. We use Guochuang Micro-magnetic Basic Sensor Array to detect the magnetic anomaly information caused by the ferromagnetic target, and determine the feature information of the ferromagnetic target according to the corresponding model algorithm.

 Design Plan:

Underwater robots with Guochuang Micro-magnetic Basic Sensor Array are used to detect geomagnetic anomalies, and obtain geomagnetic anomaly data, including ocean magnetic anomaly detection, so as to provide important information for aeromagnetic detection, iron ore, petroleum, geological prospecting and environmental monitoring, and underwater magnetic target detection, etc. And underwater robots with micro-magnetic basic sensor array can also be used to scan the underwater pipeline for magnetic NDT. If there are defects such as scars and cracks, an alarm will be issued.

 The main components of the system:

1. The underwater robot magnetic detection system is composed of micro-magnetic basic sensor array, communication module, digital signal unit, etc.;

2. The micro-magnetic basic sensor array is installed at the place where the electromagnetic interference of the underwater robots is moderate;

3. Related algorithms include: micro-magnetic basic sensor array calibration, installation error calibration, carrier interference suppression, environmental noise suppression, processing of magnetic anomaly targets small signal, etc.;

4. Data center: collection of data and information such as micro-magnetic basic sensor array data and magnetic anomaly early warning positioning signals;

5. Terminal console: display the working status and early warning information of the underwater robot magnetic detection system.