Temporal information processing is the key and advanced technology of new generation of database and information system. Based on the research on Temporal Information Model (TIM), we think the Embedding Temporal Application mode is an important and proper method to implement temporal application at present. So we use temporal extended middleware to accomplish temporal processing. After deep researching on ATSQL2 query language and the translation algorithm from ATSQL2 to standard SQL used in TimeDB, we have developed a bitemporal extended software platform upon non-temporal RDBMS in distributed environment, which lays the foundations of adding more temporal knowledge expression, query and reasoning into TIM.