1. Mobile automatic sampling and monitoring robot system

The mobile offshore water surface automatic monitoring robot is a platform system that integrates various high-precision sensing devices such as multi parameter water quality analyzers (which can monitor water temperature, dissolved oxygen, pH, conductivity, blue-green algae, chlorophyll and other factors) and fully automatic water quality sampling modules, as well as software and hardware such as automatic navigation control. It is widely used in various application fields such as offshore port surveying, water quality sampling monitoring, oil spill monitoring and treatment.

Example: Cowis C180 Mobile Water Automatic Monitoring and Sampling Robot

The product has made a breakthrough in traditional work methods by receiving real-time satellite signals compatible with Beidou/GPS/GLONASS, freely selecting river sections, flexibly positioning and orientation, collecting water samples, hydrology and other related data, truly realizing real-time monitoring of water quality information, with a wide measurement range, and not affected by weather. The positioning accuracy is also much higher than traditional monitoring methods, which can make up for the gaps and shortcomings of traditional water quality monitoring, truly achieving all-weather, high-precision, automated and high-efficiency working mode, greatly improving the efficiency and accuracy of sampling and monitoring operations.

The mobile water automatic monitoring robot can complete water quality cruise mapping of multiple monitoring points in a large watershed. The water robot can autonomously navigate according to the preset monitoring points, automatically collect water samples, and monitor water quality in real time. It can then generate real-time distribution maps of various water quality parameters in the watershed through base station software. By analyzing the distribution map, abnormal water quality areas can be identified in a timely manner, enabling real-time monitoring and early warning of sudden emissions from large-scale pollution sources.

Trajectory diagram of autonomous sampling and testing of mobile water automatic monitoring robot

Display of Water Quality Monitoring Results of Surface Sampling Monitoring Robot

2. Mobile surface robot hull and structural characteristics

(1) Hull material - new materials, ultra light and ultra solid

The hull adopts a new type of armored bulletproof composite material, with proprietary patented molding technology for light weight and high strength.

◆ The interior is filled with closed cell foam, which can effectively prevent sedimentation.

• Non magnetic, insulated, good microwave penetration, and does not affect internal antenna communication.
• The surface is made of nano scale anti fouling and wear-resistant materials, which are corrosion-resistant, anti biological attachment, and easy to maintain.

(2) Weight advantage:

• The hull is lightweight and easy to transport.
• Save energy, increase speed, and extend working hours.
• When carrying the same load, the volume is smaller.

(3) Structural advantages - small hull, large capacity

Optimized hull space design with greater displacement;

• On small ship hulls, advantages such as strength, weight, and ease of forming can be leveraged.
• Good designability, can be optimized through material selection, layering, and directional optimization according to the requirements of the ship's structure, shape, and various parts.
• The production of ship hulls has good overall integrity, no seams or gaps, a tight structure, good sealing, and prevents infiltration. The finished product has high strength and long service life.
• There are various new design styles to choose from, such as single hull, catamaran, trimaran, and double M-shaped multi hull, which provide smoother navigation, high wind and wave resistance, and good navigation posture.
• Portable structural design, compact hull size, can be easily placed in the trunk of a vehicle, making it easy to carry.
• Capable of customizing ship types, able to customize specific ship types based on users' actual usage scenarios or needs (such as ship size/color/shape, load capacity, wind and wave resistance, business unit fixed brackets, etc.).
• Adopting a ducted thruster that is flush with the bottom of the ship, it can be deployed in shallow water and has a waterproof grass wrapping design. High safety and reliability, easy installation and maintenance, and convenient to carry on the entire ship.

Example: Integrated design diagram of the ducted thruster and hull of Cowis C180 surface robot

3. Characteristics of Communication Modes in Unmanned Ship Systems

• Support the independent construction of communication base stations and design them reasonably based on specific application scenarios.
• Supports multiple communication modes such as 4G communication network, 8GB high-speed wireless bridge, signal repeater, etc.
• Multiple communication links ensure flexibility, allowing access to cloud applications and enabling multi device overview views.
• Excellent link protocol design ensures stable transmission of location and control information even under extremely low-speed network conditions, such as GPRS/2G networks.
• Customize communication plans based on communication distance, with unlimited transmission distance in areas covered by 4G networks;
• High bandwidth, fast internet speed, stable video transmission without buffering, and virtually no image delay.

4. Characteristics of Autonomous Navigation and Obstacle Avoidance in Surface Robot Systems

• The independently developed unmanned ship navigation system can freely set navigation routes, autonomously navigate and plan tasks.
• Accurate ultrasonic obstacle avoidance system, effectively avoiding obstacles within 10 meters. Realize the backward movement of water robots, no longer having to go to great lengths to adjust the direction of the bow. Complex water surface, automatic adjustment of route, automatic avoidance of obstacles on the route, no need for manual intervention, achieving unobstructed water surface.
• The positioning accuracy reaches centimeter level, the navigation is accurate, and the target of the operation is quickly locked.
• Supports GPS and Beidou navigation systems, and supports multi-mode GNSS modules.

Figure 2Task Planning and Automatic Navigation Operation Diagram

5. Characteristics of Remote Control of Surface Robot System

• Equipped with a video transmission module for remote operation.
• Users can remotely control ships thousands of miles away without leaving their homes.
• The combination of over the horizon remote driving and on-site handheld remote control allows for dual-mode switching between ground stations, making it easy to learn.

Fig 3Dual mode control

6. Characteristics of software operating platform

• The unmanned ship system operating platform is closely integrated with industry application requirements and characteristics, and is built based on geographic information system (GIS). The platform's operating interface innovatively adopts modular application programs.
• The control platform is also compatible with smartphone operating systems such as Android and iOS, and develops deep applications based on mobile terminals. Real time control of unmanned ships, video surveillance, and cleaning of surface debris can be completed through smart tablets, making it easy for users to visualize and operate.