| 摘要: |
| 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RTK-GPS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4.59 cm，最小和最大均方根分别为3.36和5.55 cm；2）垄间平行度的最小值和最大值分别为5.16和16.88 cm，最小和最大均方根6.76和24.72 cm；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。 |
| 关键词: 农业机械 卫星导航 作业精度 评估方法 评估指标 |
| DOI：10.11841/j.issn.1007-4333.2017.11.17 |
| 投稿时间：2016-10-13 |
| 基金项目:黑龙江八一农垦大学研究生创新科研项目（YJSCX2016-Y32）。 |
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| Accuracy evaluation on the automatic driving operation of agricultural machinery based on satellite navigation |
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JI Huili, WANG Xi
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| (College of Engineering, Heilongjiang Bayi Agricultural University, Daqing 163319, China) |
| Abstract: |
| Aiming at the problem that there is no uniform and standard evaluation index and evaluation method for the accuracy of automatic driving operation of agricultural machinery based on satellite navigation,by using a set of high precision RTK-GPS receiver,the measurement method of single point static positioning was adopted.The test object was the ridging operation of the automatic driving of agricultural machinery based on satellite navigation.Test data of 4 pieces of land ridging work were collected and analyzed.The ridge to linearity (RL) and the parallelism between the ridge (PBR) were used as the evaluation index.The evaluation method of the accuracy of the automatic driving operation of agricultural machinery satellite navigation was studied.The results showed that:1) The minimum RL value was 2.70 cm,the maximum RL value is 4.59 cm,the minimum RMS value was 3.36 cm,and the maximum root mean square value was 5.55 cm;2) The minimum PBR value was 5.16 cm,the maximum RL value was 16.88 cm,the minimum RMS value is 6.76 cm,and the maximum root mean square value is 24.72 cm;3) According to RL and PBR,the highest accuracy of the automatic driving operation of the agricultural machinery satellite navigation was the No.1 block,the lowest operating accuracy as No.3 block.In conclusion,the evaluation method could be used to evaluate the accuracy of automatic driving operation of agricultural machinery satellite navigation. |
| Key words: agricultural machinery satellite navigation operation accuracy evaluation method evaluation index |
