摘要
在一些局域性数据管理工作中提出了实时数据采集的问题,把结构简单、工作可靠作为应用型目标。以往的数据传输技术存在结构复杂、造价昂贵等缺点,影响了实际应用。对于这个问题,可采用双线式数据传输技术,它是一种基于单片机来实现的有别于常规的数据采集技术,根据具体情况灵活应用单片机通用"I/O"口,并专门设计了"三态输出电路",使系统的自由扩展成为可能。事实证明,双线式数据传输技术具有良好的校园工程应用前景。
In some local data management the problem of a real-time data acquisition is concerned, with the applied objective of simply and Reliability. The past Data transmission system is of some disadvantages, such as Complexity and high cost, affecting the practical application. The two-wire data transmission technology is based on SCM, with the flexible application of SCM ＂I / 0＂ ports and specially designed ＂ three-state output circuit＂, making the freedom of the system expansion possible. Proven, two-wire data transmission technology has a good application prospect of campus.
