Relay service life prediction method and system, medium and equipment
A technology of life prediction and life prediction model, which is applied in the direction of circuit breaker testing, instrumentation, measuring electricity, etc., can solve the problems of low accuracy and real-time performance, inability to predict the life of relays, and low prediction accuracy, so as to achieve guaranteed accuracy , improve the accuracy, and predict the effect of high precision
Active Publication Date: 2020-12-18
ZHUZHOU NAT INNOVATION RAILWAY TECH CO LTD
View PDF12 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The first method is mainly aimed at individuals, using mathematical methods to model, and simply predicts the life of relays, but the prediction accuracy is not high; the second method is mainly aimed at the life of a batch of relays, and cannot be used for a single Relays for life prediction
Therefore, the above-mentioned methods for predicting the life of relays have certain limitations, and the accuracy and real-time performance are not very high, so it is difficult to apply them to the rail transit industry that has high requirements for the operation of relays.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0048] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0049] Such as figure 1 As shown, the relay life prediction method of this embodiment is mainly used in occasions such as rail transit, including steps:
[0050] 1) Obtain the status information of the relay during operation; the status information includes relay contact resistance, coil resistance, coil current and coil voltage;
[0051] 2) Input the state information into the pre-established relay life prediction model to obtain the predicted life of the relay; wherein the relay life prediction model is preset with a mapping relationship between the state information and the predicted life.
[0052] The relay service life prediction method of the present invention predicts the service life of the relay through the status information of the relay contact resistance, the coil resistance, the coil current and the coil voltage, and the predictio...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a relay life prediction method and system, a medium and equipment, belongs to the technical field of relay life prediction, and is used for solving the technical problems of low life prediction precision and poor real-time performance at present, and the method comprises the steps: 1) obtaining the state information of a relay during operation, wherein the state informationcomprises relay contact resistance, coil resistance, coil current and coil voltage; 2) inputting the state information into a pre-established relay service life prediction model to obtain the predicted service life of the relay, wherein a mapping relationship between the state information and the predicted life is preset in the relay life prediction model. The method has the advantages of high prediction precision, good real-time performance and the like.
Description
technical field [0001] The invention mainly relates to the technical field of life prediction, in particular to a method, system, medium and equipment for life prediction of a relay. Background technique [0002] In the rail transit industry, a large number of relays are used in the control circuits of urban rail vehicles. In terms of maintenance of low-voltage electrical relays, urban rail vehicles have not yet had a system that can predict the life of relays online for preventive maintenance of relays. At present, there are two types of actual urban rails. The faulty relays can only be replaced after the relays fail, or all the relays can be replaced within a fixed life cycle. There is a problem of under-maintenance or over-maintenance. [0003] At present, the methods for predicting the life of relays mainly include two categories: the first type is to realize the prediction of the life of the relay through the degradation life parameters of the relay, for example, to rea...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/327
CPCG01R31/3278Y04S10/50
Inventor 李亚琦黄志华马德金李林杨颖陈勇邝林枫
Owner ZHUZHOU NAT INNOVATION RAILWAY TECH CO LTD