中继检测电路在多传感器数据融合中的应用

摘要

The error of data transmission appears when the flowing is overlow in the long distance communication. To solve this problem, a relay and measurement circuit of sensors is proposed used in long distance communication. The relay circuit works according to photoelectric isolation technology and current loop method. Current loop interface can work in 5 mA current, its communication distance is more than 500 m or even further. The circuit is applied in environmental monitoring system of multi-sensor and data information fusion algorithm of fuzzy comprehensive evaluation is used to test data fusion. The experimental results show that the proposed relay detecting circuit is reliable, stable, and well realizes data transmission in long distance.%在远距离通信过程中,传输电流过低就会导致传输数据出现误差,针对此问题,提出了一种在多传感器远距离通信中应用的中继与测量电路,该电路的中继电路部分根据光电隔离技术,采用电流环的方法来实现,电流环接口完全可以在5 mA电流下正常工作,其通信距离可大于500m,甚至更远.将这种电路应用于多传感器的环境监测系统中,同时利用模糊综合评判的数据信息融合算法对检测数据进行数据融合.实验结果表明:所提出的中继检测电路稳定性高、可靠性强,很好地实现了远距离的数据传输.