文章对冷轧连退线高度对中系统进行简要介绍,对生产中可能产生对高误差的原因进行分析。就钢卷小车测高系统进行了比较详细的分析,查找出旧程序中会产生误差的因数,对超声波测距仪器进行重新标定,对西门子经验补偿值进行修改,优化了旧的测高系统算法,使新的测高算法能够对误差产生的原因进行校正。 The article introduces the height alignment system of the cold rolling line briefly, and analyzes the possible causes of high errors in the production. A detailed analysis of the coil car altimeter system was carried out to find out the error factor in the old program, recalibrate the ultrasonic distance measuring instrument, modify the experience compensation value of Siemens, and optimize the old altimeter system algorithm , The new altimetry algorithm can correct the cause of the error.