A&D System has its own technology for developing weather equipment using image sensors based on Stereoscopic images, and develops an automatic cloud observation system called ACOS(Automatic Cloud Observation System) and supplies it to government offices. It also holds three patents related to the invention of meteorological equipment. Since 2018, the automatic cloud observation system has been continuously improving and researching the system through joint development with the National Meteorological Institute, and since 2018, it has supplied equipment to government offices and weather-related universities under the Korea Meteorological Administration