针对嵌入式系统小型仪器硬件资源有限的条件,提出一种联合RS 485与IINP协议的通信机制.通过分析多机通信的特点、系统组成结构,使用状态机的概念分析并设计实现了IINP多机通信协议.实践表明,应用于微生物总量检测系统中的IINP协议通信机制,有效地提高了系统的可靠性、稳定性与灵活性.
Owing to the limitation of small instuments′ hardware based on embedded system, a communication mechanism combined RS 485 with IINP is presented. The paper detailedly analyzed the feature and organizational structure of small instruments multi-MCU communication, and the design and realization of the IINP protocol based on state machine. The structure has been used to develop animalcule gross detect system, and effectively improved the reliability,stability and flexibility of the system.