When we entered Hebei Boyang Grain Reserve Co., Ltd., the first thing we saw was a modern bungalow equipped with intelligent monitoring equipment, which is playing an important role in scientific grain conservation. There are also low and simple warehouses built in 1963, "round warehouses" built in 1975 and tall bungalow warehouses built since 1998 in the company's compound. Shang Jinsuo, the leader of the Green Grain Storage Research Group of PCK, said, "Modern bungalows equipped with intelligent monitoring equipment are our fourth generation granaries. These four generations of granaries have witnessed the process of grain storage from" not bad "to" fresh "." When we entered Hebei Boyang Grain Reserve Co., Ltd., the first thing we saw was a modern bungalow equipped with intelligent monitoring equipment, which is playing an important role in scientific grain conservation. There are also low and simple warehouses built in 1963, "round warehouses" built in 1975 and tall bungalow warehouses built since 1998 in the company's compound. Shang Jinsuo, the leader of the Green Grain Storage Research Group of PCK, said, "Modern bungalows equipped with intelligent monitoring equipment are our fourth generation granaries. These four generations of granaries have witnessed the process of grain storage from" not bad "to" fresh "." (Shang Jinsuo introduced the grain monitoring system to reporters.) Shang Jinsuo said that in recent years, they have carried out intelligent transformation of the original tall bungalow, and the granary is equipped with equipment such as grain monitoring, circulating fumigation, and mechanical ventilation. The grain keeper supervises the whole process of grain warehousing, allocation, delivery, inventory, etc. through the Internet of Things, intelligent image and other information technologies. Focusing on green, intelligent and refined management, they raised the working standard from "not bad grain" to "fresh grain". Jia Suge, the grain keeper, said that in the past, the "physical examination" of grain was an individual effort. A few meters long grain thermometer had to be inserted every other distance. To calculate the average grain temperature, it was necessary to count the data of nearly 100 thermometers in the whole granary. Today, 312 grain temperature sensors are distributed in different positions in the warehouse. Sitting in the office and turning on the computer, you can view the grain temperature everywhere in the warehouse. The reporter saw in the grain situation monitoring room that the intelligent system can retrieve the data of the granary with the click of the mouse, and the storekeeper does not need to go in and out of the warehouse frequently. "Under low temperature conditions, wheat respiration becomes slow, and even can 'sleep'." Shang Jinsuo said that they are currently carrying out experiments on wheat low-temperature preservation technology, improving the thermal insulation and airtightness of the warehouse through transformation, realizing cold storage, cold preservation and stable cold by technical means, and creating a low-temperature and dry environment in the granary to achieve wheat preservation and storage. In the past few decades, Boliang has developed from a grass-roots grain station to a national famous local state-owned grain depot, and has set many national records in grain management and scientific grain protection. Today, Boliang has developed into a local state-owned grain depot with an area of 565 mu, more than 100 employees and a storage capacity of 550 million kg. "In order to meet the people's needs for a better life, we should not only control the grain, but also manage it well, not only not bad, but also fresh, so that people can 'eat well' and 'eat well'." Shang Jinsuo said. (Liu Xinshe)