Closed type cable state online monitoring method based on RFID

Abstract

The invention relates to a closed type cable state online monitoring method based on RFID. The closed type cable state online monitoring method based on the RFID comprises the following steps that (1) data of a sensor installed on a cable device are read in real time by an on-site data collecting unit through an RFID card reader, local storage is conducted on the data, whether the data exceed a set threshold value or not is judged, if the answer is positive, the collected data and alarm information are transmitted to a region data concentrator through a wireless radio-frequency network, and if the answer is negative, only the collected data are transmitted to the region data concentrator; (2) local storage is conducted on the received data and the received alarm information by the region data concentrator and after encryption and coding are conducted on the received data and the received alarm information, the data and the alarm information are transmitted to a back-stage management server through a mobile communication network; (3) decryption and decoding are conducted on the received data and the received alarm information by the back-stage management server, local storage is conducted, and the alarm information is sent to a user terminal in real time. Compared with the prior art, the closed type cable state online monitoring method based on the RFID has the advantages of being high in monitoring accuracy, good in data safety and the like.

Description

technical field [0001] The invention relates to a cable state monitoring method, in particular to an RFID-based closed cable state on-line monitoring method. Background technique [0002] Online temperature monitoring has been widely used in various fields. For the power industry, real-time online monitoring of the temperature of cables and related equipment is an important measure to ensure the safe and stable operation of the power grid. But so far there is very little work done in this area. [0003] Cable lines are now gradually replacing overhead lines and becoming the main body of urban power grids. Therefore, the network structure is becoming more and more complex, with many joints and branches. These cables are easy to form hot spots one by one at the places where they are connected and tapped. When it is larger, it is easy to overheat and cause damage to the equipment, or even a power failure. Therefore, for the safe and stable operation of the power grid, the onl...

AI Technical Summary

Problems solved by technology

[0005] 1. Infrared thermal imaging cameras are expensive, inconvenient to carry, and consume a lot of manpower and material resources;

[0006] 2. It is greatly affected by climate and time, and due to the limited number of equipment, the census cannot be realized;

[0007] 3. Only the information at the time of the inspection can be obtained, but the historical temperature information cannot be obtained;

[0008] 4. For the indoor terminal of the cable in the closed position, the temperature information cannot be obtained;

[0009] 5. Real-time temperature monitoring cannot be carried out, and remote information acquisition and timely temperature alarm cannot be realized

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