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针对农机卫星导航自动驾驶作业精度没有统一和规范的评估指标及评估方法的问题,利用高精度RTKGPS接收机,采用单点静态定位的测量方法,以农机卫星导航自动驾驶的起垄作业为测试对象,采集4块起垄作业地块的试验数据进行分析,并提出以垄向直线度和垄间平行度作为评估指标,对农机卫星导航自动驾驶作业精度的评估方法进行研究。结果表明:1)垄向直线度的最小值和最大值分别为2.70和4.59cm,最小和最大均方根分别为3.36和5.55cm;2)垄间平行度的最小值和最大值分别为5.16和16.88cm,最小和最大均方根6.76和24.72cm;3)根据垄向直线度和垄间平行度,农机卫星导航自动驾驶作业在1号地块的作业精度最高,3号地块的作业精度最低,与实际作业情况相符。该评估方法可实现对农机卫星导航自动驾驶作业精度的量化评估,能为农机卫星导航自动驾驶作业精度的评估提供一种有效地测试及评估的方法。
There is no uniform and normative evaluation index and assessment method for automatic piloting accuracy of agricultural satellite navigation. Using high precision RTKGPS receiver and single point static positioning measurement method, the agricultural riddle satellite navigation automatic driving ridging operation as the test object , The experimental data of 4 ridging work plots were collected for analysis, and the methods of assessing the accuracy of automatic driving operation of agricultural satellite navigation were studied by using the straightness of ridge and the parallelism of ridge as the evaluation index. The results showed that: 1) the minimum and maximum ridge straightness were 2.70 and 4.59 cm respectively, the minimum and maximum root mean square were 3.36 and 5.55 cm, respectively; 2) the minimum and maximum parallelism of the ridge were 5.16 And 16.88cm, the minimum and maximum root mean square 6.76 and 24.72cm; 3) According to the straightness of ridge and the parallelism of the ridge, automatic operation of agricultural satellite navigation in the No. 1 plots of the highest accuracy of operation, The lowest accuracy, consistent with the actual operation. The evaluation method can realize the quantitative evaluation of agricultural driving satellite navigation automatic driving operation precision and can provide an effective test and evaluation method for agricultural driving satellite navigation automatic driving operation accuracy assessment.