How AI and Cloud Tech Are Revolutionizing Grain Storage Safety in China

Food security is a top priority for a nation of 1.4 billion people, yet China loses about 35% of its grain production each year due to post‑harvest waste, pest infestation, and mold.

To tackle this, a research team from Beijing University of Posts and Telecommunications developed the nation’s first automatic grain‑pest detection device and intelligent management system, named “Grain Shield”.

Project Core Technology

The system combines hardware sensors with cloud‑based AI algorithms. Using Huawei Cloud HiLens and ModelArts, the team built deep‑learning models that process temperature, humidity, and high‑resolution images from four custom pest‑monitoring devices. The “Grain Shield Cloud” dataset contains images of 16 major storage pests, achieving over 95% identification accuracy.

Data from temperature cables and pest sensors are transmitted to the edge, aggregated in the cloud, and analyzed to predict and warn of infestations up to a week in advance. Alerts trigger automatic ventilation or safe chemical fumigation, creating a closed‑loop monitoring solution.

Impact and Deployment

Demonstrations in 13 provinces have shown that each grain depot can reduce loss by up to 600 tons annually, cut chemical pesticide use by more than 15%, and save 2 250 person‑hours of labor. Scaling the system to all 13 000 Chinese grain depots could prevent 7.8 million tons of loss and generate economic benefits of roughly ¥79.5 billion per year.

Huawei Support

Huawei provided cloud infrastructure, AI toolkits, and storage (OBS) for the massive datasets, ensuring data privacy and high‑performance training. Technical staff assisted the team throughout development, enabling rapid iteration of models and reliable deployment.

Future Outlook

The project has already earned a silver award at the 6th China International “Internet+” University Innovation Competition and secured patents and high‑impact publications. Ongoing collaboration with national grain authorities aims to integrate “Grain Shield” into the “Grain Early‑Know” platform, setting new industry standards for storage safety.