| 1. | Novel data reconciliation model and gross error detection 一种新的数据协调模型及显著误差检测 |
| 2. | Measurement errors can be mainly divided into two types : random error and gross error 这种误差又分为随机误差和显著误差两大类。 |
| 3. | Application results show that the improved data reconciliation model is very effective and can be widely used in industrial processes 实际结果表明:本文所提出的数据协调和显著误差检测技术具有显著的应用价值。 |
| 4. | A modified sicc ( serial identification with collective compensation ) method used in gross error detection and data reconciliation for chemical process is introduced in this paper 摘要提出了一种改进的sicc (顺序识别显著误差并同步补偿)算法。 |
| 5. | By using temporal redundancy , upper and lower bounds of process measurements are added in the modified sicc method to avoid the misidentification of gross errors 改进后的算法利用时间冗余性,加入对过程测量变量的上下限约束,避免了显著误差的误判。 |
| 6. | Simulation results show that the new method is very sensitive to the presence of gross errors and has a great probability of correctly finding one or several gross errors . 3 仿真研究结果表明:此方法对显著误差十分敏感,其各项性能指标均符合实际工业要求,具有较高的可信度和可应用性。 |
| 7. | A method of selecting mges that can be deleted is proposed . because too much mges " deletion will result in an ineffective model , mges can not be deleted totally at one time 提出一种线性稳态数据协调中的显著误差变量选择删除算法,以保证在显著误差变量个数过多的情况下原有模型的有效性。 |
| 8. | For the existing test based on measurement residual , the main problem is that the data reconciliation procedure tends to spread the gross errors overall the measurements , which results in the detection failure 通过构造一个基于测量值比例关系的f统计量,并与约束残差统计量相结合,对稳态过程中出现的显著误差进行检测。 |
| 9. | Besides , the results of the new model can be used to detect gross errors directly . simulation results show that the gross error detection based on the new model is very sensitive to the presence of gross errors . 4 仿真试验证明:基于该改进模型的协调结果,可直接利用测量残差检测法进行显著误差检测,具有较高的错误检出率,且“虚警”的错误率较低。 |
| 10. | To prevent the computation of project matrix , the measurements are compensated by using the estimated gross error magnitudes after each gross error is identified , and after that , mt ( measurement test ) method is used to find the gross error candidates 并且通过对显著误差进行逐步的幅度补偿,再采用mt (测量残差检验)法找出候选显著误差集,避免了投影矩阵的计算。 |