全数字光纤传感测试系统的设计

为克服传统光纤传感测试系统器件分散性大、过程复杂等局限性，结合红外光电传感及物联网技术，设计了全数字光纤传感测试系统。该系统以MCU( Micro Control Unit) 为主控单元，采用红外接近传感器作为IＲLED( Infrared Light Emitting Diode) 驱动以及光电转换输出单元，ＲTC ( Ｒeal-Time Clock) 芯片及EEPＲOM( Electrically-Erasable Programmable Ｒead-Only Memory) 进行时间读取及光电数据的实时存储，WiFi ( Wireless Fidelity) 模块实现光电数据的网传、按键及LCD( Liquid Crystal Display) 显示单元完成人机交互等功能。实验结果表明，该系统可用于特殊环境下的非接触物体检测与颜色识别等场合，为进一步实现光纤传感测试系统的小型化及智能化提供了一种可行性方案。

Design on All Digital Optical Fiber Sensing Test System

In order to overcome the limitations of the traditional optical fiber sensing test system，such as large dispersivity and complex process，a full digital optical fiber sensing test system is designed by combining the infrared photoelectric sensor and the technology of Internet of things． The system uses the MCU( Micro Control Unit) as the main control unit，the infrared proximity sensor is used as the IＲ LED( Infrared Light Emitting Diode) driver and the photoelectric conversion output unit，the ＲTC ( Ｒeal-Time Clock) chip and the EEPＲOM( Electrically-Erasable Programmable Ｒead-Only Memory) are used to read the time and the real-time storage of the photoelectric data． The WiFi ( Wireless Fidelity ) module realizes the network transmission of the photoelectric data． The key and the LCD( Liquid Crystal Display) display unit complete the human-computer interaction and other functions． Experiment results show that the system can be applied to non-contact object detection under special circumstances，color recognition and other occasions． It provides a feasible scheme for further realizing miniaturization and intellectualization of optical fiber sensing test system．