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针对基于惯性测量原理的光纤陀螺测斜仪对传感器检测数据的实时、可靠性等技术要求,设计了基于FP-GA+DSP的高速、多通道、可编程数据采集单元,实现了多传感器数据实时采集。并依据系统通讯特点,通过数模结合方法实现了以双极性归零码为编码方式的通讯传输单元。给出了采集及传输单元的软硬件设计方案。现场下井实验数据表明,该数据采集及通讯单元工作稳定、实时性好,误码率小于10-5,达到了测斜仪可靠工作的要求。
In order to meet the technical requirements of real-time and reliability of sensor detection data, a fast, multi-channel and programmable data acquisition unit based on FP-GA + DSP is designed for inertial measurement principle of fiber optic gyro inclinometer. collection. According to the characteristics of system communication, the transmission unit of communication with bipolar zero coding is realized by digital-analog combined method. Gives the hardware and software design of acquisition and transmission unit. The field test data show that the data acquisition and communication unit is stable, good real-time, bit error rate less than 10-5, to meet the requirements of reliable inclinometer work.