IP Library Granted Patent US 12662786
Granted Patent B2
US 12662786 · App. 19/411,416 · Granted Jun 23, 2026

AI-based autonomous system and method for predicting and removing floating waste from water bodies

Inventors: Preetam Sai Muppidi (San Ramon, CA); Madhumati Pattabhi (Kingsville, TX); Sudhakar Rao Krothapalli (Rancho Palos Verdes, CA)
E02B15/104B63B35/32B63B79/15B63B79/20B63B79/40C02F1/008C02F1/40G06V10/12G06V10/764G06V20/56C02F2103/007C02F2209/006C02F2209/05G06V10/762
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Quick Facts
Patent No.
US 12662786
App. No.
19/411,416
Granted
Jun 23, 2026
Kind
B2
Abstract

An artificial intelligence (AI)-based autonomous system integrated with an autonomous water-cleaning vehicle that predicts and selectively removes floating waste by accurately analyzing algae type, volume, and vitality, thereby ensuring targeted removal to maintain ecological balance and enhance water quality in water bodies. The AI-based autonomous system comprises a computing device, an autonomous water-cleaning vehicle, a network, a server, a database, and a user device. The autonomous water-cleaning vehicle comprises a floating body, a plurality of propelling wheels, one or more motors, a primary supporter, a secondary supporter, a first extended column, a second extended column, a supporting frame, a driving unit, a first roller, a second roller, an inclined conveyor belt, a counterweight, a container, an AI imaging unit, a water-salinity sensor, the optical fluorescence-sensing unit, a navigation unit, and a controller.

Claims (31)

1 . An artificial intelligence (AI)-based autonomous system for predicting and selectively removing floating waste from water bodies, comprising:

a computing device having a controller and a non-transitory memory for storing instructions that are executable by the controller,

wherein the computing device is disposed on a floating body of an autonomous water-cleaning vehicle, and is configured to automatically maneuver the autonomous water-cleaning vehicle across a water surface for performing a cleaning operation to collect the floating waste that includes algae and recyclable waste,

wherein the computing device is configured to execute a selective cleaning operation by monitoring and analyzing types of the floating waste and parameters of the algae, wherein the parameters include type, volume, and vitality of the algae, and

wherein the selective cleaning operation enables retention of ecologically beneficial algae and facilitates removal of harmful or excessive algae from the water surface that negatively impacts water quality,

wherein the controller is configured to:

receive image data generated by an artificial intelligence (AI) imaging unit, water-salinity levels obtained from a water-salinity sensor, fluorescence-decay lifetime characteristics, temporal-attenuation profiles, and ranging data of the algae produced by an optical fluorescence-sensing unit,

wherein the AI imaging unit and the optical fluorescence-sensing unit are configured to be disposed on a support frame affixed to the floating body, and wherein the water-salinity sensor is affixed to a front-bottom region of the floating body to enable submerged environmental sampling;

generate a unified, time-synchronized, multi-parameter dataset by performing normalization and synchronization of the image data, the water-salinity levels, and the fluorescence-decay lifetime characteristics and the ranging data, thereby producing a reduced-dimensional computational representation that eliminates redundant data and compresses salient feature vectors into a compact form suitable for real-time inference and control execution on the controller,

wherein the normalization and synchronization of the image data, the water-salinity levels, and the fluorescence-decay lifetime characteristics and the ranging data reduces inference latency and improves selective-removal accuracy;

classify the algae into the ecologically beneficial and ecologically harmful types using the AI imaging unit, wherein the AI imaging unit is pre-programmed with a dataset of images representing the algae as the ecologically beneficial and ecologically harmful types, enabling precise identification and classification of the algae on the water surface;

determine a vitality level of the algae by analyzing the fluorescence-decay lifetime characteristics and the temporal-attenuation profiles using a machine learning model, wherein the controller is pre-programmed with fluorescence decay pattern data for determining algae vitality;

compute the volume of the algae using fluorescence intensity, the ranging data, and data processing techniques to generate a three-dimensional biomass model, thereby enabling structured volumetric estimation and optimized memory usage during point-cloud reconstruction;

compare the types, the vitality level, and the volume of the algae with salinity-dependent ecological threshold values stored in the non-transitory memory to generate a removal decision using a decision model, wherein dynamic ecological thresholding reduces unnecessary removal of beneficial algae, and improves selective-removal accuracy compared to fixed-threshold systems;

activate a conveyor unit of the autonomous water-cleaning vehicle when the removal decision indicates harmful, dead, or excessive algae by the decision model, and inhibit activation when the algae is determined to be beneficial and below threshold levels, thereby reducing mechanical load and decreasing energy consumption; and

command a navigation unit to maneuver the autonomous water-cleaning vehicle toward or away from detected algae regions based on the removal decision, thereby increasing propulsion efficiency and reducing energy consumption through optimized path-planning,

wherein the computing device is configured to selectively activate the conveyor unit to remove the harmful or excessive algae as determined by the removal decision from the water surface, thereby producing a tangible modification to the water body.

2 . The AI-based autonomous system of claim 1 , wherein the AI imaging unit is rotatable through 360 degrees, and wherein the AI imaging unit comprises a waterproof and corrosion-resistant enclosure configured for outdoor aquatic operation.

3 . The AI-based autonomous system of claim 1 , wherein the dataset of images comprises images of green algae, diatoms, red algae, blue-green algae, dinoflagellates, and golden algae.

4 . The AI-based autonomous system of claim 1 , wherein the optical fluorescence-sensing unit comprises a laser source emitting at 450-532 nanometers, a beam steering unit, a fluorescence detector, a spectral filter, and a timing and ranging module.

5 . The AI-based autonomous system of claim 1 , wherein the water-salinity sensor is a toroidal conductivity salinity meter partially immersed in water, and wherein the controller is an NVIDIA Jetson Orin Nano 8 GB module disposed within the floating body.

6 . The AI-based autonomous system of claim 1 , wherein the machine learning model comprises at least one of support vector machine (SVM), k-means clustering, DBSCAN clustering, or long short-term memory (LSTM) networks.

7 . The AI-based autonomous system of claim 1 , wherein the data processing techniques comprise at least one of regression analysis, point cloud processing, and kalman filter model.

8 . The AI-based autonomous system of claim 1 , wherein the decision model comprises at least one of a fuzzy logic model and a random forest classifier model.

9 . The AI-based autonomous system of claim 1 , wherein the temporal-attenuation profiles are fluorescence decay patterns with decay times between 650-1100 nanoseconds for live algae and under 500 nanoseconds for dead algae.

10 . The AI-based autonomous system of claim 1 , wherein the point-cloud reconstruction techniques utilize fluorescence intensity and LiDAR ranging data to generate three-dimensional biomass estimates.

11 . The AI-based autonomous system of claim 1 , wherein the removal decision is generated by comparing the computed volume of the algae against salinity-dependent threshold values stored in the non-transitory memory.

12 . The AI-based autonomous system of claim 1 , wherein the navigation unit comprises a global positioning system (GPS) and a global navigation satellite system (GNSS) for real-time geolocation tracking, an inertial measurement unit (IMU) with accelerometers and gyroscopes for precise orientation and motion control, and an obstacle detection and avoidance system that utilizes sonar, LiDAR (Light Detection and Ranging), and AI-based path-planning model.

13 . The AI-based autonomous system of claim 1 , wherein the computing device is configured to communicate with a user device via a network through IoT communication modules.

14 . The AI-based autonomous system of claim 13 , wherein the AI-based autonomous system is configured to enable a user to manually operate the autonomous water-cleaning vehicle through the user device via a multi-platform application.

15 . The AI-based autonomous system of claim 1 , wherein the salinity-dependent ecological threshold values define maximum beneficial algae volumes of 10-30 g/m 3 for salinity below 0.5 ppt, 30-50 g/m 3 for salinity 0.5-5 ppt, 50-100 g/m 3 for salinity 5-18 ppt, 100-200 g/m 3 for salinity 18-30 ppt, 200-500 g/m 3 for salinity 30-35 ppt, and over 500 g/m 3 for salinity above 35 ppt.