Research on the fault detection and location method for dam safety monitoring equipments
Dam safety monitoring equipments are prone to failure due to the hostile environment.To ad-dress the time-consuming problem of traditional manual fault detection and location,a fault detection and location method for dam safety monitoring equipments based on fault symptom matrix is proposed.Firstly,the fault symptom matrix is constructed according to dam safety monitoring system structure and fault reasoning,and the judgment matrix is obtained by combining observation vector and symptom ma-trix.Then,the similarity between column vectors of symptom matrix and judgment matrix is evaluated based on Euclidean distance and angle cosine,and the optimal solution space is constructed.Finally,the fault mode is screened based on the intersection of solution space.The experience results illustrate that this method has high diagnostic accuracy and practicability for both single fault and compound fault.
dam safety monitoring equipmentfault detection and locationfault symptom matrix
NETL
NSTL
万方数据
