编写该文档的目的在于从总体设计的角度明确设备巡检系统的功能和处理模式，明确与数据库及界面的接口，使系统开发人员和产品管理人员明确产品功能，可以有针对性的进行系统开发、测试、验收等各方面的工作。-The preparation of the document is clear from the perspective of the overall design of equipment and inspection function of the system processing model, a clear interface with the database and interface, the system developers and product managers a clear product features, can be targeted for system development , testing, inspection and other aspects of the work.