一种低价格高性能多点头顶显示系统

智能型显示仪表能应用很多场所，目前市场上的智能仪表大多是一对一显示的，然而对一些重要参数，人们总希望它能在更多的监视场所显示出来（即点对多的显示）同时要求价格要比较低，显示数据要绝对的准确，且害时性还要好，文章介绍了一种通用型的头顶显示仪表系统的接口电路，工作原理及其数据通信方法，仅表间的连接采用ＲＳ－４２２或ＲＳ－４８５接口标准，用此方法设计并制作的点对多头顶显示系统在压裂施工仪表系统中得到了应

A One-to-More-Head Display Equipment with Low Price and High Property.

The intelligent display instrument can be applied in many fields. It is known that most intelligent instrumnets have their one to one display equipment in market at present. However, people wish that the most important data can be displayed in more fields where data display is very necessary. The equipment should possess characteristics such as lower cost, high accuary and real time display. The principle of interface circuit and menthod of data communication on head display equipment are introduced in this paper. The connection among instruments is the standards RS-422 or RS-485. According to those methods, a one to more head display system had been designed and applied in hydraulic fracturing.