Ip 21of B.b.Aspen company (infoplus.21)
C. Doctor from Honeywell (process history database)
Edna (enterprise distributed network) of D.d.Instep company.
PI is widely used in China's power industry. Using patented revolving door compression technology and unique secondary filtering technology, the data entering PI database can be compressed most effectively, which greatly saves hard disk space. IP2 1 belongs to authentic real-time database software like PI, and its price is similar to that of PI, which is more expensive. IP2 1 has been widely used in PetroChina and Sinopec. Because Honeywell occupies most DCS in the chemical industry, PHD is also widely used in the chemical industry, and Oracle relational database is used inside PHD.
The above three real-time databases are all traditional real-time databases introduced at the end of the 20th century. Due to the high price of PI, which dominates the power industry, InstepeDNA entered the power industry by virtue of its price advantage, and gradually has certain customers. Therefore, at present, large power enterprises still prefer OSIPI, while many small and medium-sized power enterprises choose eDNA.
Features: high price, real-time database including real-time database and other supporting software.