Method of data exchange between embedded device and remote database

Abstract

The invention relates to a method of data exchange between an embedded device and a remote database, belonging to the technical field of data communications. The method comprises the following steps: the embedded device generates a request for accessing the remote database, and processes the request for accessing the remote database into an SQL (structured query language) instruction packet with a preset format; a middleware establishes the communication connection, issues the request for connecting a database server and performs the required access operation according to an instruction extracted from the SQL instruction packet; the middleware receives the operation result which is returned by the database, and transmits the packaged XML (extensible makeup language) document to the embedded device; and the embedded device receives and stores the packaged XML data. The XML is taken as a medium in the method of the data exchange between the embedded system and the remote database provided by the invention, the data exchange is finished under the condition of not influencing the data information of the remote database, thus an embedded database user can conveniently interact the datawith the remote database, and the cross-platform seamless connection between heterogeneous systems is realized.

Description

Technical field [0001] The invention relates to a remote data exchange method, in particular to a method for data exchange between an embedded device and a remote database, and belongs to the technical field of data communication. Background technique [0002] The architecture of embedded systems can usually be divided into four parts: embedded processors, embedded peripherals, embedded operating systems and embedded application software. At present, in various fields such as network, handheld communication equipment, national defense and military, medical and health, and automation control, embedded devices often act as important terminal roles such as data collection and data display. Therefore, information exchange technology is particularly important. The wide application of heterogeneous database systems requires the provision of a real-time and seamless data exchange platform for these heterogeneous systems. Providing a complete data source model and consistent access inte...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to propose a method for data exchange between an embedded device and a remote database in view of the difficulty in data exchange when an embedded device accesses a remote database, so as to provide a complete data source model and a consistent data source for the embedded terminal. The access interface properly solves the access operation of the embedded device to the remote database, so that the operation of any database is performed locally, without considering the heterogeneity of the database in terms of platform, system environment, internal data format, etc.

Images